GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/libavcodec/mpegvideo.c Lines: 995 1361 73.1 %
Date: 2021-04-20 04:37:23 Branches: 462 810 57.0 %

Line Branch Exec Source
1
/*
2
 * The simplest mpeg encoder (well, it was the simplest!)
3
 * Copyright (c) 2000,2001 Fabrice Bellard
4
 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
5
 *
6
 * 4MV & hq & B-frame encoding stuff by Michael Niedermayer <michaelni@gmx.at>
7
 *
8
 * This file is part of FFmpeg.
9
 *
10
 * FFmpeg is free software; you can redistribute it and/or
11
 * modify it under the terms of the GNU Lesser General Public
12
 * License as published by the Free Software Foundation; either
13
 * version 2.1 of the License, or (at your option) any later version.
14
 *
15
 * FFmpeg is distributed in the hope that it will be useful,
16
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
18
 * Lesser General Public License for more details.
19
 *
20
 * You should have received a copy of the GNU Lesser General Public
21
 * License along with FFmpeg; if not, write to the Free Software
22
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23
 */
24
25
/**
26
 * @file
27
 * The simplest mpeg encoder (well, it was the simplest!).
28
 */
29
30
#include "libavutil/attributes.h"
31
#include "libavutil/avassert.h"
32
#include "libavutil/imgutils.h"
33
#include "libavutil/internal.h"
34
#include "libavutil/motion_vector.h"
35
#include "libavutil/video_enc_params.h"
36
37
#include "avcodec.h"
38
#include "blockdsp.h"
39
#include "h264chroma.h"
40
#include "idctdsp.h"
41
#include "internal.h"
42
#include "mathops.h"
43
#include "mpeg_er.h"
44
#include "mpegutils.h"
45
#include "mpegvideo.h"
46
#include "mpegvideodata.h"
47
#include "mjpegenc.h"
48
#include "msmpeg4.h"
49
#include "qpeldsp.h"
50
#include "thread.h"
51
#include "wmv2.h"
52
#include <limits.h>
53
54
126126
static void dct_unquantize_mpeg1_intra_c(MpegEncContext *s,
55
                                   int16_t *block, int n, int qscale)
56
{
57
    int i, level, nCoeffs;
58
    const uint16_t *quant_matrix;
59
60
126126
    nCoeffs= s->block_last_index[n];
61
62
126126
    block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
63
    /* XXX: only MPEG-1 */
64
126126
    quant_matrix = s->intra_matrix;
65
3042075
    for(i=1;i<=nCoeffs;i++) {
66
2915949
        int j= s->intra_scantable.permutated[i];
67
2915949
        level = block[j];
68
2915949
        if (level) {
69
1215436
            if (level < 0) {
70
604537
                level = -level;
71
604537
                level = (int)(level * qscale * quant_matrix[j]) >> 3;
72
604537
                level = (level - 1) | 1;
73
604537
                level = -level;
74
            } else {
75
610899
                level = (int)(level * qscale * quant_matrix[j]) >> 3;
76
610899
                level = (level - 1) | 1;
77
            }
78
1215436
            block[j] = level;
79
        }
80
    }
81
126126
}
82
83
285535
static void dct_unquantize_mpeg1_inter_c(MpegEncContext *s,
84
                                   int16_t *block, int n, int qscale)
85
{
86
    int i, level, nCoeffs;
87
    const uint16_t *quant_matrix;
88
89
285535
    nCoeffs= s->block_last_index[n];
90
91
285535
    quant_matrix = s->inter_matrix;
92
9502845
    for(i=0; i<=nCoeffs; i++) {
93
9217310
        int j= s->intra_scantable.permutated[i];
94
9217310
        level = block[j];
95
9217310
        if (level) {
96
2101549
            if (level < 0) {
97
1052132
                level = -level;
98
1052132
                level = (((level << 1) + 1) * qscale *
99
1052132
                         ((int) (quant_matrix[j]))) >> 4;
100
1052132
                level = (level - 1) | 1;
101
1052132
                level = -level;
102
            } else {
103
1049417
                level = (((level << 1) + 1) * qscale *
104
1049417
                         ((int) (quant_matrix[j]))) >> 4;
105
1049417
                level = (level - 1) | 1;
106
            }
107
2101549
            block[j] = level;
108
        }
109
    }
110
285535
}
111
112
static void dct_unquantize_mpeg2_intra_c(MpegEncContext *s,
113
                                   int16_t *block, int n, int qscale)
114
{
115
    int i, level, nCoeffs;
116
    const uint16_t *quant_matrix;
117
118
    if (s->q_scale_type) qscale = ff_mpeg2_non_linear_qscale[qscale];
119
    else                 qscale <<= 1;
120
121
    if(s->alternate_scan) nCoeffs= 63;
122
    else nCoeffs= s->block_last_index[n];
123
124
    block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
125
    quant_matrix = s->intra_matrix;
126
    for(i=1;i<=nCoeffs;i++) {
127
        int j= s->intra_scantable.permutated[i];
128
        level = block[j];
129
        if (level) {
130
            if (level < 0) {
131
                level = -level;
132
                level = (int)(level * qscale * quant_matrix[j]) >> 4;
133
                level = -level;
134
            } else {
135
                level = (int)(level * qscale * quant_matrix[j]) >> 4;
136
            }
137
            block[j] = level;
138
        }
139
    }
140
}
141
142
1070000
static void dct_unquantize_mpeg2_intra_bitexact(MpegEncContext *s,
143
                                   int16_t *block, int n, int qscale)
144
{
145
    int i, level, nCoeffs;
146
    const uint16_t *quant_matrix;
147
1070000
    int sum=-1;
148
149
1070000
    if (s->q_scale_type) qscale = ff_mpeg2_non_linear_qscale[qscale];
150
1070000
    else                 qscale <<= 1;
151
152
1070000
    if(s->alternate_scan) nCoeffs= 63;
153
1070000
    else nCoeffs= s->block_last_index[n];
154
155
1070000
    block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
156
1070000
    sum += block[0];
157
1070000
    quant_matrix = s->intra_matrix;
158
19380998
    for(i=1;i<=nCoeffs;i++) {
159
18310998
        int j= s->intra_scantable.permutated[i];
160
18310998
        level = block[j];
161
18310998
        if (level) {
162
9000791
            if (level < 0) {
163
4524793
                level = -level;
164
4524793
                level = (int)(level * qscale * quant_matrix[j]) >> 4;
165
4524793
                level = -level;
166
            } else {
167
4475998
                level = (int)(level * qscale * quant_matrix[j]) >> 4;
168
            }
169
9000791
            block[j] = level;
170
9000791
            sum+=level;
171
        }
172
    }
173
1070000
    block[63]^=sum&1;
174
1070000
}
175
176
2584798
static void dct_unquantize_mpeg2_inter_c(MpegEncContext *s,
177
                                   int16_t *block, int n, int qscale)
178
{
179
    int i, level, nCoeffs;
180
    const uint16_t *quant_matrix;
181
2584798
    int sum=-1;
182
183
2584798
    if (s->q_scale_type) qscale = ff_mpeg2_non_linear_qscale[qscale];
184
2584798
    else                 qscale <<= 1;
185
186
2584798
    if(s->alternate_scan) nCoeffs= 63;
187
2584798
    else nCoeffs= s->block_last_index[n];
188
189
2584798
    quant_matrix = s->inter_matrix;
190
65487089
    for(i=0; i<=nCoeffs; i++) {
191
62902291
        int j= s->intra_scantable.permutated[i];
192
62902291
        level = block[j];
193
62902291
        if (level) {
194
22207630
            if (level < 0) {
195
11129274
                level = -level;
196
11129274
                level = (((level << 1) + 1) * qscale *
197
11129274
                         ((int) (quant_matrix[j]))) >> 5;
198
11129274
                level = -level;
199
            } else {
200
11078356
                level = (((level << 1) + 1) * qscale *
201
11078356
                         ((int) (quant_matrix[j]))) >> 5;
202
            }
203
22207630
            block[j] = level;
204
22207630
            sum+=level;
205
        }
206
    }
207
2584798
    block[63]^=sum&1;
208
2584798
}
209
210
3374730
static void dct_unquantize_h263_intra_c(MpegEncContext *s,
211
                                  int16_t *block, int n, int qscale)
212
{
213
    int i, level, qmul, qadd;
214
    int nCoeffs;
215
216
    av_assert2(s->block_last_index[n]>=0 || s->h263_aic);
217
218
3374730
    qmul = qscale << 1;
219
220
3374730
    if (!s->h263_aic) {
221
3201534
        block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
222
3201534
        qadd = (qscale - 1) | 1;
223
    }else{
224
173196
        qadd = 0;
225
    }
226
3374730
    if(s->ac_pred)
227
68304
        nCoeffs=63;
228
    else
229
3306426
        nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ];
230
231
120820136
    for(i=1; i<=nCoeffs; i++) {
232
117445406
        level = block[i];
233
117445406
        if (level) {
234
36048637
            if (level < 0) {
235
18051468
                level = level * qmul - qadd;
236
            } else {
237
17997169
                level = level * qmul + qadd;
238
            }
239
36048637
            block[i] = level;
240
        }
241
    }
242
3374730
}
243
244
6014662
static void dct_unquantize_h263_inter_c(MpegEncContext *s,
245
                                  int16_t *block, int n, int qscale)
246
{
247
    int i, level, qmul, qadd;
248
    int nCoeffs;
249
250
    av_assert2(s->block_last_index[n]>=0);
251
252
6014662
    qadd = (qscale - 1) | 1;
253
6014662
    qmul = qscale << 1;
254
255
6014662
    nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
256
257
235641304
    for(i=0; i<=nCoeffs; i++) {
258
229626642
        level = block[i];
259
229626642
        if (level) {
260
48213622
            if (level < 0) {
261
24027915
                level = level * qmul - qadd;
262
            } else {
263
24185707
                level = level * qmul + qadd;
264
            }
265
48213622
            block[i] = level;
266
        }
267
    }
268
6014662
}
269
270
271
static void gray16(uint8_t *dst, const uint8_t *src, ptrdiff_t linesize, int h)
272
{
273
    while(h--)
274
        memset(dst + h*linesize, 128, 16);
275
}
276
277
static void gray8(uint8_t *dst, const uint8_t *src, ptrdiff_t linesize, int h)
278
{
279
    while(h--)
280
        memset(dst + h*linesize, 128, 8);
281
}
282
283
/* init common dct for both encoder and decoder */
284
753
static av_cold int dct_init(MpegEncContext *s)
285
{
286
753
    ff_blockdsp_init(&s->bdsp, s->avctx);
287
753
    ff_h264chroma_init(&s->h264chroma, 8); //for lowres
288
753
    ff_hpeldsp_init(&s->hdsp, s->avctx->flags);
289
753
    ff_mpegvideodsp_init(&s->mdsp);
290
753
    ff_videodsp_init(&s->vdsp, s->avctx->bits_per_raw_sample);
291
292
753
    if (s->avctx->debug & FF_DEBUG_NOMC) {
293
        int i;
294
        for (i=0; i<4; i++) {
295
            s->hdsp.avg_pixels_tab[0][i] = gray16;
296
            s->hdsp.put_pixels_tab[0][i] = gray16;
297
            s->hdsp.put_no_rnd_pixels_tab[0][i] = gray16;
298
299
            s->hdsp.avg_pixels_tab[1][i] = gray8;
300
            s->hdsp.put_pixels_tab[1][i] = gray8;
301
            s->hdsp.put_no_rnd_pixels_tab[1][i] = gray8;
302
        }
303
    }
304
305
753
    s->dct_unquantize_h263_intra = dct_unquantize_h263_intra_c;
306
753
    s->dct_unquantize_h263_inter = dct_unquantize_h263_inter_c;
307
753
    s->dct_unquantize_mpeg1_intra = dct_unquantize_mpeg1_intra_c;
308
753
    s->dct_unquantize_mpeg1_inter = dct_unquantize_mpeg1_inter_c;
309
753
    s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_c;
310
753
    if (s->avctx->flags & AV_CODEC_FLAG_BITEXACT)
311
545
        s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_bitexact;
312
753
    s->dct_unquantize_mpeg2_inter = dct_unquantize_mpeg2_inter_c;
313
314
    if (HAVE_INTRINSICS_NEON)
315
        ff_mpv_common_init_neon(s);
316
317
    if (ARCH_ALPHA)
318
        ff_mpv_common_init_axp(s);
319
    if (ARCH_ARM)
320
        ff_mpv_common_init_arm(s);
321
    if (ARCH_PPC)
322
        ff_mpv_common_init_ppc(s);
323
    if (ARCH_X86)
324
753
        ff_mpv_common_init_x86(s);
325
    if (ARCH_MIPS)
326
        ff_mpv_common_init_mips(s);
327
328
753
    return 0;
329
}
330
331
1092
av_cold void ff_mpv_idct_init(MpegEncContext *s)
332
{
333
1092
    if (s->codec_id == AV_CODEC_ID_MPEG4)
334
226
        s->idsp.mpeg4_studio_profile = s->studio_profile;
335
1092
    ff_idctdsp_init(&s->idsp, s->avctx);
336
337
    /* load & permutate scantables
338
     * note: only wmv uses different ones
339
     */
340
1092
    if (s->alternate_scan) {
341
        ff_init_scantable(s->idsp.idct_permutation, &s->inter_scantable, ff_alternate_vertical_scan);
342
        ff_init_scantable(s->idsp.idct_permutation, &s->intra_scantable, ff_alternate_vertical_scan);
343
    } else {
344
1092
        ff_init_scantable(s->idsp.idct_permutation, &s->inter_scantable, ff_zigzag_direct);
345
1092
        ff_init_scantable(s->idsp.idct_permutation, &s->intra_scantable, ff_zigzag_direct);
346
    }
347
1092
    ff_init_scantable(s->idsp.idct_permutation, &s->intra_h_scantable, ff_alternate_horizontal_scan);
348
1092
    ff_init_scantable(s->idsp.idct_permutation, &s->intra_v_scantable, ff_alternate_vertical_scan);
349
1092
}
350
351
10750
static int alloc_picture(MpegEncContext *s, Picture *pic)
352
{
353
21500
    return ff_alloc_picture(s->avctx, pic, &s->me, &s->sc, 0, 0,
354
10750
                            s->chroma_x_shift, s->chroma_y_shift, s->out_format,
355
                            s->mb_stride, s->mb_width, s->mb_height, s->b8_stride,
356
                            &s->linesize, &s->uvlinesize);
357
}
358
359
828
static int init_duplicate_context(MpegEncContext *s)
360
{
361
828
    int y_size = s->b8_stride * (2 * s->mb_height + 1);
362
828
    int c_size = s->mb_stride * (s->mb_height + 1);
363
828
    int yc_size = y_size + 2 * c_size;
364
    int i;
365
366
828
    if (s->mb_height & 1)
367
147
        yc_size += 2*s->b8_stride + 2*s->mb_stride;
368
369
828
    if (s->encoding) {
370
195
        if (!FF_ALLOCZ_TYPED_ARRAY(s->me.map,       ME_MAP_SIZE) ||
371
195
            !FF_ALLOCZ_TYPED_ARRAY(s->me.score_map, ME_MAP_SIZE))
372
            return AVERROR(ENOMEM);
373
374
195
        if (s->noise_reduction) {
375
4
            if (!FF_ALLOCZ_TYPED_ARRAY(s->dct_error_sum,  2))
376
                return AVERROR(ENOMEM);
377
        }
378
    }
379
828
    if (!FF_ALLOCZ_TYPED_ARRAY(s->blocks,  2))
380
        return AVERROR(ENOMEM);
381
828
    s->block = s->blocks[0];
382
383
10764
    for (i = 0; i < 12; i++) {
384
9936
        s->pblocks[i] = &s->block[i];
385
    }
386
387
828
    if (!(s->block32         = av_mallocz(sizeof(*s->block32))) ||
388
828
        !(s->dpcm_macroblock = av_mallocz(sizeof(*s->dpcm_macroblock))))
389
        return AVERROR(ENOMEM);
390
828
    s->dpcm_direction = 0;
391
392
828
    if (s->avctx->codec_tag == AV_RL32("VCR2")) {
393
        // exchange uv
394
4
        FFSWAP(void *, s->pblocks[4], s->pblocks[5]);
395
    }
396
397
828
    if (s->out_format == FMT_H263) {
398
        /* ac values */
399
459
        if (!FF_ALLOCZ_TYPED_ARRAY(s->ac_val_base,  yc_size))
400
            return AVERROR(ENOMEM);
401
459
        s->ac_val[0] = s->ac_val_base + s->b8_stride + 1;
402
459
        s->ac_val[1] = s->ac_val_base + y_size + s->mb_stride + 1;
403
459
        s->ac_val[2] = s->ac_val[1] + c_size;
404
    }
405
406
828
    return 0;
407
}
408
409
/**
410
 * Initialize an MpegEncContext's thread contexts. Presumes that
411
 * slice_context_count is already set and that all the fields
412
 * that are freed/reset in free_duplicate_context() are NULL.
413
 */
414
792
static int init_duplicate_contexts(MpegEncContext *s)
415
{
416
792
    int nb_slices = s->slice_context_count, ret;
417
418
    /* We initialize the copies before the original so that
419
     * fields allocated in init_duplicate_context are NULL after
420
     * copying. This prevents double-frees upon allocation error. */
421
828
    for (int i = 1; i < nb_slices; i++) {
422
36
        s->thread_context[i] = av_memdup(s, sizeof(MpegEncContext));
423
36
        if (!s->thread_context[i])
424
            return AVERROR(ENOMEM);
425
36
        if ((ret = init_duplicate_context(s->thread_context[i])) < 0)
426
            return ret;
427
36
        s->thread_context[i]->start_mb_y =
428
36
            (s->mb_height * (i    ) + nb_slices / 2) / nb_slices;
429
36
        s->thread_context[i]->end_mb_y   =
430
36
            (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
431
    }
432
792
    s->start_mb_y = 0;
433
807
    s->end_mb_y   = nb_slices > 1 ? (s->mb_height + nb_slices / 2) / nb_slices
434
792
                                  : s->mb_height;
435
792
    return init_duplicate_context(s);
436
}
437
438
848
static void free_duplicate_context(MpegEncContext *s)
439
{
440
848
    if (!s)
441
        return;
442
443
848
    av_freep(&s->sc.edge_emu_buffer);
444
848
    av_freep(&s->me.scratchpad);
445
848
    s->me.temp =
446
848
    s->sc.rd_scratchpad =
447
848
    s->sc.b_scratchpad =
448
848
    s->sc.obmc_scratchpad = NULL;
449
450
848
    av_freep(&s->dct_error_sum);
451
848
    av_freep(&s->me.map);
452
848
    av_freep(&s->me.score_map);
453
848
    av_freep(&s->blocks);
454
848
    av_freep(&s->block32);
455
848
    av_freep(&s->dpcm_macroblock);
456
848
    av_freep(&s->ac_val_base);
457
848
    s->block = NULL;
458
}
459
460
812
static void free_duplicate_contexts(MpegEncContext *s)
461
{
462
848
    for (int i = 1; i < s->slice_context_count; i++) {
463
36
        free_duplicate_context(s->thread_context[i]);
464
36
        av_freep(&s->thread_context[i]);
465
    }
466
812
    free_duplicate_context(s);
467
812
}
468
469
8752
static void backup_duplicate_context(MpegEncContext *bak, MpegEncContext *src)
470
{
471
#define COPY(a) bak->a = src->a
472
8752
    COPY(sc.edge_emu_buffer);
473
8752
    COPY(me.scratchpad);
474
8752
    COPY(me.temp);
475
8752
    COPY(sc.rd_scratchpad);
476
8752
    COPY(sc.b_scratchpad);
477
8752
    COPY(sc.obmc_scratchpad);
478
8752
    COPY(me.map);
479
8752
    COPY(me.score_map);
480
8752
    COPY(blocks);
481
8752
    COPY(block);
482
8752
    COPY(block32);
483
8752
    COPY(dpcm_macroblock);
484
8752
    COPY(dpcm_direction);
485
8752
    COPY(start_mb_y);
486
8752
    COPY(end_mb_y);
487
8752
    COPY(me.map_generation);
488
8752
    COPY(pb);
489
8752
    COPY(dct_error_sum);
490
8752
    COPY(dct_count[0]);
491
8752
    COPY(dct_count[1]);
492
8752
    COPY(ac_val_base);
493
8752
    COPY(ac_val[0]);
494
8752
    COPY(ac_val[1]);
495
8752
    COPY(ac_val[2]);
496
#undef COPY
497
8752
}
498
499
4376
int ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src)
500
{
501
    MpegEncContext bak;
502
    int i, ret;
503
    // FIXME copy only needed parts
504
4376
    backup_duplicate_context(&bak, dst);
505
4376
    memcpy(dst, src, sizeof(MpegEncContext));
506
4376
    backup_duplicate_context(dst, &bak);
507
56888
    for (i = 0; i < 12; i++) {
508
52512
        dst->pblocks[i] = &dst->block[i];
509
    }
510
4376
    if (dst->avctx->codec_tag == AV_RL32("VCR2")) {
511
        // exchange uv
512
        FFSWAP(void *, dst->pblocks[4], dst->pblocks[5]);
513
    }
514

4412
    if (!dst->sc.edge_emu_buffer &&
515
36
        (ret = ff_mpeg_framesize_alloc(dst->avctx, &dst->me,
516
36
                                       &dst->sc, dst->linesize)) < 0) {
517
        av_log(dst->avctx, AV_LOG_ERROR, "failed to allocate context "
518
               "scratch buffers.\n");
519
        return ret;
520
    }
521
4376
    return 0;
522
}
523
524
int ff_mpeg_update_thread_context(AVCodecContext *dst,
525
                                  const AVCodecContext *src)
526
{
527
    int i, ret;
528
    MpegEncContext *s = dst->priv_data, *s1 = src->priv_data;
529
530
    if (dst == src)
531
        return 0;
532
533
    av_assert0(s != s1);
534
535
    // FIXME can parameters change on I-frames?
536
    // in that case dst may need a reinit
537
    if (!s->context_initialized) {
538
        int err;
539
        memcpy(s, s1, sizeof(MpegEncContext));
540
541
        s->avctx                 = dst;
542
        s->bitstream_buffer      = NULL;
543
        s->bitstream_buffer_size = s->allocated_bitstream_buffer_size = 0;
544
545
        if (s1->context_initialized){
546
//             s->picture_range_start  += MAX_PICTURE_COUNT;
547
//             s->picture_range_end    += MAX_PICTURE_COUNT;
548
            ff_mpv_idct_init(s);
549
            if((err = ff_mpv_common_init(s)) < 0){
550
                memset(s, 0, sizeof(MpegEncContext));
551
                s->avctx = dst;
552
                return err;
553
            }
554
        }
555
    }
556
557
    if (s->height != s1->height || s->width != s1->width || s->context_reinit) {
558
        s->height = s1->height;
559
        s->width  = s1->width;
560
        if ((ret = ff_mpv_common_frame_size_change(s)) < 0)
561
            return ret;
562
    }
563
564
    s->avctx->coded_height  = s1->avctx->coded_height;
565
    s->avctx->coded_width   = s1->avctx->coded_width;
566
    s->avctx->width         = s1->avctx->width;
567
    s->avctx->height        = s1->avctx->height;
568
569
    s->quarter_sample       = s1->quarter_sample;
570
571
    s->coded_picture_number = s1->coded_picture_number;
572
    s->picture_number       = s1->picture_number;
573
574
    av_assert0(!s->picture || s->picture != s1->picture);
575
    if(s->picture)
576
    for (i = 0; i < MAX_PICTURE_COUNT; i++) {
577
        ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
578
        if (s1->picture && s1->picture[i].f->buf[0] &&
579
            (ret = ff_mpeg_ref_picture(s->avctx, &s->picture[i], &s1->picture[i])) < 0)
580
            return ret;
581
    }
582
583
#define UPDATE_PICTURE(pic)\
584
do {\
585
    ff_mpeg_unref_picture(s->avctx, &s->pic);\
586
    if (s1->pic.f && s1->pic.f->buf[0])\
587
        ret = ff_mpeg_ref_picture(s->avctx, &s->pic, &s1->pic);\
588
    else\
589
        ret = ff_update_picture_tables(&s->pic, &s1->pic);\
590
    if (ret < 0)\
591
        return ret;\
592
} while (0)
593
594
    UPDATE_PICTURE(current_picture);
595
    UPDATE_PICTURE(last_picture);
596
    UPDATE_PICTURE(next_picture);
597
598
#define REBASE_PICTURE(pic, new_ctx, old_ctx)                                 \
599
    ((pic && pic >= old_ctx->picture &&                                       \
600
      pic < old_ctx->picture + MAX_PICTURE_COUNT) ?                           \
601
        &new_ctx->picture[pic - old_ctx->picture] : NULL)
602
603
    s->last_picture_ptr    = REBASE_PICTURE(s1->last_picture_ptr,    s, s1);
604
    s->current_picture_ptr = REBASE_PICTURE(s1->current_picture_ptr, s, s1);
605
    s->next_picture_ptr    = REBASE_PICTURE(s1->next_picture_ptr,    s, s1);
606
607
    // Error/bug resilience
608
    s->next_p_frame_damaged = s1->next_p_frame_damaged;
609
    s->workaround_bugs      = s1->workaround_bugs;
610
    s->padding_bug_score    = s1->padding_bug_score;
611
612
    // MPEG-4 timing info
613
    memcpy(&s->last_time_base, &s1->last_time_base,
614
           (char *) &s1->pb_field_time + sizeof(s1->pb_field_time) -
615
           (char *) &s1->last_time_base);
616
617
    // B-frame info
618
    s->max_b_frames = s1->max_b_frames;
619
    s->low_delay    = s1->low_delay;
620
    s->droppable    = s1->droppable;
621
622
    // DivX handling (doesn't work)
623
    s->divx_packed  = s1->divx_packed;
624
625
    if (s1->bitstream_buffer) {
626
        if (s1->bitstream_buffer_size +
627
            AV_INPUT_BUFFER_PADDING_SIZE > s->allocated_bitstream_buffer_size) {
628
            av_fast_malloc(&s->bitstream_buffer,
629
                           &s->allocated_bitstream_buffer_size,
630
                           s1->allocated_bitstream_buffer_size);
631
            if (!s->bitstream_buffer) {
632
                s->bitstream_buffer_size = 0;
633
                return AVERROR(ENOMEM);
634
            }
635
        }
636
        s->bitstream_buffer_size = s1->bitstream_buffer_size;
637
        memcpy(s->bitstream_buffer, s1->bitstream_buffer,
638
               s1->bitstream_buffer_size);
639
        memset(s->bitstream_buffer + s->bitstream_buffer_size, 0,
640
               AV_INPUT_BUFFER_PADDING_SIZE);
641
    }
642
643
    // linesize-dependent scratch buffer allocation
644
    if (!s->sc.edge_emu_buffer)
645
        if (s1->linesize) {
646
            if (ff_mpeg_framesize_alloc(s->avctx, &s->me,
647
                                        &s->sc, s1->linesize) < 0) {
648
                av_log(s->avctx, AV_LOG_ERROR, "Failed to allocate context "
649
                       "scratch buffers.\n");
650
                return AVERROR(ENOMEM);
651
            }
652
        } else {
653
            av_log(s->avctx, AV_LOG_ERROR, "Context scratch buffers could not "
654
                   "be allocated due to unknown size.\n");
655
        }
656
657
    // MPEG-2/interlacing info
658
    memcpy(&s->progressive_sequence, &s1->progressive_sequence,
659
           (char *) &s1->rtp_mode - (char *) &s1->progressive_sequence);
660
661
    if (!s1->first_field) {
662
        s->last_pict_type = s1->pict_type;
663
        if (s1->current_picture_ptr)
664
            s->last_lambda_for[s1->pict_type] = s1->current_picture_ptr->f->quality;
665
    }
666
667
    return 0;
668
}
669
670
/**
671
 * Set the given MpegEncContext to common defaults
672
 * (same for encoding and decoding).
673
 * The changed fields will not depend upon the
674
 * prior state of the MpegEncContext.
675
 */
676
774
void ff_mpv_common_defaults(MpegEncContext *s)
677
{
678
774
    s->y_dc_scale_table      =
679
774
    s->c_dc_scale_table      = ff_mpeg1_dc_scale_table;
680
774
    s->chroma_qscale_table   = ff_default_chroma_qscale_table;
681
774
    s->progressive_frame     = 1;
682
774
    s->progressive_sequence  = 1;
683
774
    s->picture_structure     = PICT_FRAME;
684
685
774
    s->coded_picture_number  = 0;
686
774
    s->picture_number        = 0;
687
688
774
    s->f_code                = 1;
689
774
    s->b_code                = 1;
690
691
774
    s->slice_context_count   = 1;
692
774
}
693
694
/**
695
 * Initialize the given MpegEncContext for decoding.
696
 * the changed fields will not depend upon
697
 * the prior state of the MpegEncContext.
698
 */
699
591
void ff_mpv_decode_init(MpegEncContext *s, AVCodecContext *avctx)
700
{
701
591
    ff_mpv_common_defaults(s);
702
703
591
    s->avctx           = avctx;
704
591
    s->width           = avctx->coded_width;
705
591
    s->height          = avctx->coded_height;
706
591
    s->codec_id        = avctx->codec->id;
707
591
    s->workaround_bugs = avctx->workaround_bugs;
708
709
    /* convert fourcc to upper case */
710
591
    s->codec_tag          = avpriv_toupper4(avctx->codec_tag);
711
591
}
712
713
/**
714
 * Initialize and allocates MpegEncContext fields dependent on the resolution.
715
 */
716
792
static int init_context_frame(MpegEncContext *s)
717
{
718
    int y_size, c_size, yc_size, i, mb_array_size, mv_table_size, x, y;
719
720
792
    s->mb_width   = (s->width + 15) / 16;
721
792
    s->mb_stride  = s->mb_width + 1;
722
792
    s->b8_stride  = s->mb_width * 2 + 1;
723
792
    mb_array_size = s->mb_height * s->mb_stride;
724
792
    mv_table_size = (s->mb_height + 2) * s->mb_stride + 1;
725
726
    /* set default edge pos, will be overridden
727
     * in decode_header if needed */
728
792
    s->h_edge_pos = s->mb_width * 16;
729
792
    s->v_edge_pos = s->mb_height * 16;
730
731
792
    s->mb_num     = s->mb_width * s->mb_height;
732
733
792
    s->block_wrap[0] =
734
792
    s->block_wrap[1] =
735
792
    s->block_wrap[2] =
736
792
    s->block_wrap[3] = s->b8_stride;
737
792
    s->block_wrap[4] =
738
792
    s->block_wrap[5] = s->mb_stride;
739
740
792
    y_size  = s->b8_stride * (2 * s->mb_height + 1);
741
792
    c_size  = s->mb_stride * (s->mb_height + 1);
742
792
    yc_size = y_size + 2   * c_size;
743
744
792
    if (s->mb_height & 1)
745
146
        yc_size += 2*s->b8_stride + 2*s->mb_stride;
746
747
792
    if (!FF_ALLOCZ_TYPED_ARRAY(s->mb_index2xy, s->mb_num + 1))
748
        return AVERROR(ENOMEM);
749
15434
    for (y = 0; y < s->mb_height; y++)
750
459667
        for (x = 0; x < s->mb_width; x++)
751
445025
            s->mb_index2xy[x + y * s->mb_width] = x + y * s->mb_stride;
752
753
792
    s->mb_index2xy[s->mb_height * s->mb_width] = (s->mb_height - 1) * s->mb_stride + s->mb_width; // FIXME really needed?
754
755
792
    if (s->encoding) {
756
        /* Allocate MV tables */
757
183
        if (!FF_ALLOCZ_TYPED_ARRAY(s->p_mv_table_base,            mv_table_size) ||
758
183
            !FF_ALLOCZ_TYPED_ARRAY(s->b_forw_mv_table_base,       mv_table_size) ||
759
183
            !FF_ALLOCZ_TYPED_ARRAY(s->b_back_mv_table_base,       mv_table_size) ||
760
183
            !FF_ALLOCZ_TYPED_ARRAY(s->b_bidir_forw_mv_table_base, mv_table_size) ||
761
183
            !FF_ALLOCZ_TYPED_ARRAY(s->b_bidir_back_mv_table_base, mv_table_size) ||
762
183
            !FF_ALLOCZ_TYPED_ARRAY(s->b_direct_mv_table_base,     mv_table_size))
763
            return AVERROR(ENOMEM);
764
183
        s->p_mv_table            = s->p_mv_table_base + s->mb_stride + 1;
765
183
        s->b_forw_mv_table       = s->b_forw_mv_table_base + s->mb_stride + 1;
766
183
        s->b_back_mv_table       = s->b_back_mv_table_base + s->mb_stride + 1;
767
183
        s->b_bidir_forw_mv_table = s->b_bidir_forw_mv_table_base + s->mb_stride + 1;
768
183
        s->b_bidir_back_mv_table = s->b_bidir_back_mv_table_base + s->mb_stride + 1;
769
183
        s->b_direct_mv_table     = s->b_direct_mv_table_base + s->mb_stride + 1;
770
771
        /* Allocate MB type table */
772
183
        if (!FF_ALLOCZ_TYPED_ARRAY(s->mb_type,      mb_array_size) ||
773
183
            !FF_ALLOCZ_TYPED_ARRAY(s->lambda_table, mb_array_size) ||
774
183
            !FF_ALLOC_TYPED_ARRAY (s->cplx_tab,     mb_array_size) ||
775
183
            !FF_ALLOC_TYPED_ARRAY (s->bits_tab,     mb_array_size))
776
            return AVERROR(ENOMEM);
777
    }
778
779
792
    if (s->codec_id == AV_CODEC_ID_MPEG4 ||
780
542
        (s->avctx->flags & AV_CODEC_FLAG_INTERLACED_ME)) {
781
        /* interlaced direct mode decoding tables */
782
798
        for (i = 0; i < 2; i++) {
783
            int j, k;
784
1596
            for (j = 0; j < 2; j++) {
785
3192
                for (k = 0; k < 2; k++) {
786
2128
                    if (!FF_ALLOCZ_TYPED_ARRAY(s->b_field_mv_table_base[i][j][k], mv_table_size))
787
                        return AVERROR(ENOMEM);
788
2128
                    s->b_field_mv_table[i][j][k] = s->b_field_mv_table_base[i][j][k] +
789
2128
                                                   s->mb_stride + 1;
790
                }
791
1064
                if (!FF_ALLOCZ_TYPED_ARRAY(s->b_field_select_table [i][j], mv_table_size * 2) ||
792
1064
                    !FF_ALLOCZ_TYPED_ARRAY(s->p_field_mv_table_base[i][j], mv_table_size))
793
                    return AVERROR(ENOMEM);
794
1064
                s->p_field_mv_table[i][j] = s->p_field_mv_table_base[i][j] + s->mb_stride + 1;
795
            }
796
532
            if (!FF_ALLOCZ_TYPED_ARRAY(s->p_field_select_table[i], mv_table_size * 2))
797
                return AVERROR(ENOMEM);
798
        }
799
    }
800
792
    if (s->out_format == FMT_H263) {
801
        /* cbp values, cbp, ac_pred, pred_dir */
802
455
        if (!FF_ALLOCZ_TYPED_ARRAY(s->coded_block_base, y_size + (s->mb_height&1)*2*s->b8_stride) ||
803
455
            !FF_ALLOCZ_TYPED_ARRAY(s->cbp_table,        mb_array_size)                            ||
804
455
            !FF_ALLOCZ_TYPED_ARRAY(s->pred_dir_table,   mb_array_size))
805
            return AVERROR(ENOMEM);
806
455
        s->coded_block = s->coded_block_base + s->b8_stride + 1;
807
    }
808
809

792
    if (s->h263_pred || s->h263_plus || !s->encoding) {
810
        /* dc values */
811
        // MN: we need these for error resilience of intra-frames
812
690
        if (!FF_ALLOCZ_TYPED_ARRAY(s->dc_val_base, yc_size))
813
            return AVERROR(ENOMEM);
814
690
        s->dc_val[0] = s->dc_val_base + s->b8_stride + 1;
815
690
        s->dc_val[1] = s->dc_val_base + y_size + s->mb_stride + 1;
816
690
        s->dc_val[2] = s->dc_val[1] + c_size;
817
2555208
        for (i = 0; i < yc_size; i++)
818
2554518
            s->dc_val_base[i] = 1024;
819
    }
820
821
    /* which mb is an intra block,  init macroblock skip table */
822
792
    if (!FF_ALLOC_TYPED_ARRAY(s->mbintra_table, mb_array_size) ||
823
        // Note the + 1 is for a quicker MPEG-4 slice_end detection
824
792
        !FF_ALLOCZ_TYPED_ARRAY(s->mbskip_table,  mb_array_size + 2))
825
        return AVERROR(ENOMEM);
826
792
    memset(s->mbintra_table, 1, mb_array_size);
827
828
792
    return ff_mpeg_er_init(s);
829
}
830
831
753
static void clear_context(MpegEncContext *s)
832
{
833
    int i, j, k;
834
835
753
    memset(&s->next_picture, 0, sizeof(s->next_picture));
836
753
    memset(&s->last_picture, 0, sizeof(s->last_picture));
837
753
    memset(&s->current_picture, 0, sizeof(s->current_picture));
838
753
    memset(&s->new_picture, 0, sizeof(s->new_picture));
839
840
753
    memset(s->thread_context, 0, sizeof(s->thread_context));
841
842
753
    s->me.map = NULL;
843
753
    s->me.score_map = NULL;
844
753
    s->dct_error_sum = NULL;
845
753
    s->block = NULL;
846
753
    s->blocks = NULL;
847
753
    s->block32 = NULL;
848
753
    memset(s->pblocks, 0, sizeof(s->pblocks));
849
753
    s->dpcm_direction = 0;
850
753
    s->dpcm_macroblock = NULL;
851
753
    s->ac_val_base = NULL;
852
753
    s->ac_val[0] =
853
753
    s->ac_val[1] =
854
753
    s->ac_val[2] =NULL;
855
753
    s->sc.edge_emu_buffer = NULL;
856
753
    s->me.scratchpad = NULL;
857
753
    s->me.temp =
858
753
    s->sc.rd_scratchpad =
859
753
    s->sc.b_scratchpad =
860
753
    s->sc.obmc_scratchpad = NULL;
861
862
863
753
    s->bitstream_buffer = NULL;
864
753
    s->allocated_bitstream_buffer_size = 0;
865
753
    s->picture          = NULL;
866
753
    s->mb_type          = NULL;
867
753
    s->p_mv_table_base  = NULL;
868
753
    s->b_forw_mv_table_base = NULL;
869
753
    s->b_back_mv_table_base = NULL;
870
753
    s->b_bidir_forw_mv_table_base = NULL;
871
753
    s->b_bidir_back_mv_table_base = NULL;
872
753
    s->b_direct_mv_table_base = NULL;
873
753
    s->p_mv_table            = NULL;
874
753
    s->b_forw_mv_table       = NULL;
875
753
    s->b_back_mv_table       = NULL;
876
753
    s->b_bidir_forw_mv_table = NULL;
877
753
    s->b_bidir_back_mv_table = NULL;
878
753
    s->b_direct_mv_table     = NULL;
879
2259
    for (i = 0; i < 2; i++) {
880
4518
        for (j = 0; j < 2; j++) {
881
9036
            for (k = 0; k < 2; k++) {
882
6024
                s->b_field_mv_table_base[i][j][k] = NULL;
883
6024
                s->b_field_mv_table[i][j][k] = NULL;
884
            }
885
3012
            s->b_field_select_table[i][j] = NULL;
886
3012
            s->p_field_mv_table_base[i][j] = NULL;
887
3012
            s->p_field_mv_table[i][j] = NULL;
888
        }
889
1506
        s->p_field_select_table[i] = NULL;
890
    }
891
892
753
    s->dc_val_base = NULL;
893
753
    s->coded_block_base = NULL;
894
753
    s->mbintra_table = NULL;
895
753
    s->cbp_table = NULL;
896
753
    s->pred_dir_table = NULL;
897
898
753
    s->mbskip_table = NULL;
899
900
753
    s->er.error_status_table = NULL;
901
753
    s->er.er_temp_buffer = NULL;
902
753
    s->mb_index2xy = NULL;
903
753
    s->lambda_table = NULL;
904
905
753
    s->cplx_tab = NULL;
906
753
    s->bits_tab = NULL;
907
753
}
908
909
/**
910
 * init common structure for both encoder and decoder.
911
 * this assumes that some variables like width/height are already set
912
 */
913
753
av_cold int ff_mpv_common_init(MpegEncContext *s)
914
{
915
    int i, ret;
916
753
    int nb_slices = (HAVE_THREADS &&
917
753
                     s->avctx->active_thread_type & FF_THREAD_SLICE) ?
918
753
                    s->avctx->thread_count : 1;
919
920
753
    clear_context(s);
921
922

753
    if (s->encoding && s->avctx->slices)
923
12
        nb_slices = s->avctx->slices;
924
925

753
    if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
926
128
        s->mb_height = (s->height + 31) / 32 * 2;
927
    else
928
625
        s->mb_height = (s->height + 15) / 16;
929
930
753
    if (s->avctx->pix_fmt == AV_PIX_FMT_NONE) {
931
        av_log(s->avctx, AV_LOG_ERROR,
932
               "decoding to AV_PIX_FMT_NONE is not supported.\n");
933
        return AVERROR(EINVAL);
934
    }
935
936

753
    if (nb_slices > MAX_THREADS || (nb_slices > s->mb_height && s->mb_height)) {
937
        int max_slices;
938
        if (s->mb_height)
939
            max_slices = FFMIN(MAX_THREADS, s->mb_height);
940
        else
941
            max_slices = MAX_THREADS;
942
        av_log(s->avctx, AV_LOG_WARNING, "too many threads/slices (%d),"
943
               " reducing to %d\n", nb_slices, max_slices);
944
        nb_slices = max_slices;
945
    }
946
947

1491
    if ((s->width || s->height) &&
948
738
        av_image_check_size(s->width, s->height, 0, s->avctx))
949
        return AVERROR(EINVAL);
950
951
753
    dct_init(s);
952
953
    /* set chroma shifts */
954
753
    ret = av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt,
955
                                           &s->chroma_x_shift,
956
                                           &s->chroma_y_shift);
957
753
    if (ret)
958
        return ret;
959
960
753
    if (!FF_ALLOCZ_TYPED_ARRAY(s->picture, MAX_PICTURE_COUNT))
961
        return AVERROR(ENOMEM);
962
27861
    for (i = 0; i < MAX_PICTURE_COUNT; i++) {
963
27108
        s->picture[i].f = av_frame_alloc();
964
27108
        if (!s->picture[i].f)
965
            goto fail_nomem;
966
    }
967
968
753
    if (!(s->next_picture.f    = av_frame_alloc()) ||
969
753
        !(s->last_picture.f    = av_frame_alloc()) ||
970
753
        !(s->current_picture.f = av_frame_alloc()) ||
971
753
        !(s->new_picture.f     = av_frame_alloc()))
972
        goto fail_nomem;
973
974
753
    if ((ret = init_context_frame(s)))
975
        goto fail;
976
977
753
    s->parse_context.state = -1;
978
979
753
    s->context_initialized = 1;
980
753
    memset(s->thread_context, 0, sizeof(s->thread_context));
981
753
    s->thread_context[0]   = s;
982
753
    s->slice_context_count = nb_slices;
983
984
//     if (s->width && s->height) {
985
753
    ret = init_duplicate_contexts(s);
986
753
    if (ret < 0)
987
        goto fail;
988
//     }
989
990
753
    return 0;
991
 fail_nomem:
992
    ret = AVERROR(ENOMEM);
993
 fail:
994
    ff_mpv_common_end(s);
995
    return ret;
996
}
997
998
/**
999
 * Frees and resets MpegEncContext fields depending on the resolution
1000
 * as well as the slice thread contexts.
1001
 * Is used during resolution changes to avoid a full reinitialization of the
1002
 * codec.
1003
 */
1004
812
static void free_context_frame(MpegEncContext *s)
1005
{
1006
    int i, j, k;
1007
1008
812
    free_duplicate_contexts(s);
1009
1010
812
    av_freep(&s->mb_type);
1011
812
    av_freep(&s->p_mv_table_base);
1012
812
    av_freep(&s->b_forw_mv_table_base);
1013
812
    av_freep(&s->b_back_mv_table_base);
1014
812
    av_freep(&s->b_bidir_forw_mv_table_base);
1015
812
    av_freep(&s->b_bidir_back_mv_table_base);
1016
812
    av_freep(&s->b_direct_mv_table_base);
1017
812
    s->p_mv_table            = NULL;
1018
812
    s->b_forw_mv_table       = NULL;
1019
812
    s->b_back_mv_table       = NULL;
1020
812
    s->b_bidir_forw_mv_table = NULL;
1021
812
    s->b_bidir_back_mv_table = NULL;
1022
812
    s->b_direct_mv_table     = NULL;
1023
2436
    for (i = 0; i < 2; i++) {
1024
4872
        for (j = 0; j < 2; j++) {
1025
9744
            for (k = 0; k < 2; k++) {
1026
6496
                av_freep(&s->b_field_mv_table_base[i][j][k]);
1027
6496
                s->b_field_mv_table[i][j][k] = NULL;
1028
            }
1029
3248
            av_freep(&s->b_field_select_table[i][j]);
1030
3248
            av_freep(&s->p_field_mv_table_base[i][j]);
1031
3248
            s->p_field_mv_table[i][j] = NULL;
1032
        }
1033
1624
        av_freep(&s->p_field_select_table[i]);
1034
    }
1035
1036
812
    av_freep(&s->dc_val_base);
1037
812
    av_freep(&s->coded_block_base);
1038
812
    av_freep(&s->mbintra_table);
1039
812
    av_freep(&s->cbp_table);
1040
812
    av_freep(&s->pred_dir_table);
1041
1042
812
    av_freep(&s->mbskip_table);
1043
1044
812
    av_freep(&s->er.error_status_table);
1045
812
    av_freep(&s->er.er_temp_buffer);
1046
812
    av_freep(&s->mb_index2xy);
1047
812
    av_freep(&s->lambda_table);
1048
1049
812
    av_freep(&s->cplx_tab);
1050
812
    av_freep(&s->bits_tab);
1051
1052
812
    s->linesize = s->uvlinesize = 0;
1053
812
}
1054
1055
39
int ff_mpv_common_frame_size_change(MpegEncContext *s)
1056
{
1057
39
    int i, err = 0;
1058
1059
39
    if (!s->context_initialized)
1060
        return AVERROR(EINVAL);
1061
1062
39
    free_context_frame(s);
1063
1064
39
    if (s->picture)
1065
1443
        for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1066
1404
                s->picture[i].needs_realloc = 1;
1067
        }
1068
1069
39
    s->last_picture_ptr         =
1070
39
    s->next_picture_ptr         =
1071
39
    s->current_picture_ptr      = NULL;
1072
1073
    // init
1074

39
    if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
1075
        s->mb_height = (s->height + 31) / 32 * 2;
1076
    else
1077
39
        s->mb_height = (s->height + 15) / 16;
1078
1079

78
    if ((s->width || s->height) &&
1080
39
        (err = av_image_check_size(s->width, s->height, 0, s->avctx)) < 0)
1081
        goto fail;
1082
1083
    /* set chroma shifts */
1084
39
    err = av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt,
1085
                                           &s->chroma_x_shift,
1086
                                           &s->chroma_y_shift);
1087
39
    if (err < 0)
1088
        goto fail;
1089
1090
39
    if ((err = init_context_frame(s)))
1091
        goto fail;
1092
1093
39
    memset(s->thread_context, 0, sizeof(s->thread_context));
1094
39
    s->thread_context[0]   = s;
1095
1096

39
    if (s->width && s->height) {
1097
39
        err = init_duplicate_contexts(s);
1098
39
        if (err < 0)
1099
            goto fail;
1100
    }
1101
39
    s->context_reinit = 0;
1102
1103
39
    return 0;
1104
 fail:
1105
    free_context_frame(s);
1106
    s->context_reinit = 1;
1107
    return err;
1108
}
1109
1110
/* init common structure for both encoder and decoder */
1111
773
void ff_mpv_common_end(MpegEncContext *s)
1112
{
1113
    int i;
1114
1115
773
    if (!s)
1116
        return;
1117
1118
773
    free_context_frame(s);
1119
773
    if (s->slice_context_count > 1)
1120
15
        s->slice_context_count = 1;
1121
1122
773
    av_freep(&s->parse_context.buffer);
1123
773
    s->parse_context.buffer_size = 0;
1124
1125
773
    av_freep(&s->bitstream_buffer);
1126
773
    s->allocated_bitstream_buffer_size = 0;
1127
1128
773
    if (!s->avctx)
1129
        return;
1130
1131
773
    if (s->picture) {
1132
27861
        for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1133
27108
            ff_free_picture_tables(&s->picture[i]);
1134
27108
            ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1135
27108
            av_frame_free(&s->picture[i].f);
1136
        }
1137
    }
1138
773
    av_freep(&s->picture);
1139
773
    ff_free_picture_tables(&s->last_picture);
1140
773
    ff_mpeg_unref_picture(s->avctx, &s->last_picture);
1141
773
    av_frame_free(&s->last_picture.f);
1142
773
    ff_free_picture_tables(&s->current_picture);
1143
773
    ff_mpeg_unref_picture(s->avctx, &s->current_picture);
1144
773
    av_frame_free(&s->current_picture.f);
1145
773
    ff_free_picture_tables(&s->next_picture);
1146
773
    ff_mpeg_unref_picture(s->avctx, &s->next_picture);
1147
773
    av_frame_free(&s->next_picture.f);
1148
773
    ff_free_picture_tables(&s->new_picture);
1149
773
    ff_mpeg_unref_picture(s->avctx, &s->new_picture);
1150
773
    av_frame_free(&s->new_picture.f);
1151
1152
773
    s->context_initialized      = 0;
1153
773
    s->context_reinit           = 0;
1154
773
    s->last_picture_ptr         =
1155
773
    s->next_picture_ptr         =
1156
773
    s->current_picture_ptr      = NULL;
1157
773
    s->linesize = s->uvlinesize = 0;
1158
}
1159
1160
1161
static void gray_frame(AVFrame *frame)
1162
{
1163
    int i, h_chroma_shift, v_chroma_shift;
1164
1165
    av_pix_fmt_get_chroma_sub_sample(frame->format, &h_chroma_shift, &v_chroma_shift);
1166
1167
    for(i=0; i<frame->height; i++)
1168
        memset(frame->data[0] + frame->linesize[0]*i, 0x80, frame->width);
1169
    for(i=0; i<AV_CEIL_RSHIFT(frame->height, v_chroma_shift); i++) {
1170
        memset(frame->data[1] + frame->linesize[1]*i,
1171
               0x80, AV_CEIL_RSHIFT(frame->width, h_chroma_shift));
1172
        memset(frame->data[2] + frame->linesize[2]*i,
1173
               0x80, AV_CEIL_RSHIFT(frame->width, h_chroma_shift));
1174
    }
1175
}
1176
1177
/**
1178
 * generic function called after decoding
1179
 * the header and before a frame is decoded.
1180
 */
1181
10744
int ff_mpv_frame_start(MpegEncContext *s, AVCodecContext *avctx)
1182
{
1183
    int i, ret;
1184
    Picture *pic;
1185
10744
    s->mb_skipped = 0;
1186
1187
10744
    if (!ff_thread_can_start_frame(avctx)) {
1188
        av_log(avctx, AV_LOG_ERROR, "Attempt to start a frame outside SETUP state\n");
1189
        return -1;
1190
    }
1191
1192
    /* mark & release old frames */
1193

10744
    if (s->pict_type != AV_PICTURE_TYPE_B && s->last_picture_ptr &&
1194
7764
        s->last_picture_ptr != s->next_picture_ptr &&
1195
7764
        s->last_picture_ptr->f->buf[0]) {
1196
7764
        ff_mpeg_unref_picture(s->avctx, s->last_picture_ptr);
1197
    }
1198
1199
    /* release forgotten pictures */
1200
    /* if (MPEG-124 / H.263) */
1201
397528
    for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1202
386784
        if (&s->picture[i] != s->last_picture_ptr &&
1203
376542
            &s->picture[i] != s->next_picture_ptr &&
1204

366094
            s->picture[i].reference && !s->picture[i].needs_realloc) {
1205
            ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1206
        }
1207
    }
1208
1209
10744
    ff_mpeg_unref_picture(s->avctx, &s->current_picture);
1210
10744
    ff_mpeg_unref_picture(s->avctx, &s->last_picture);
1211
10744
    ff_mpeg_unref_picture(s->avctx, &s->next_picture);
1212
1213
    /* release non reference frames */
1214
397528
    for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1215
386784
        if (!s->picture[i].reference)
1216
373838
            ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1217
    }
1218
1219

10744
    if (s->current_picture_ptr && !s->current_picture_ptr->f->buf[0]) {
1220
        // we already have an unused image
1221
        // (maybe it was set before reading the header)
1222
5895
        pic = s->current_picture_ptr;
1223
    } else {
1224
4849
        i   = ff_find_unused_picture(s->avctx, s->picture, 0);
1225
4849
        if (i < 0) {
1226
            av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1227
            return i;
1228
        }
1229
4849
        pic = &s->picture[i];
1230
    }
1231
1232
10744
    pic->reference = 0;
1233
10744
    if (!s->droppable) {
1234
10744
        if (s->pict_type != AV_PICTURE_TYPE_B)
1235
8266
            pic->reference = 3;
1236
    }
1237
1238
10744
    pic->f->coded_picture_number = s->coded_picture_number++;
1239
1240
10744
    if (alloc_picture(s, pic) < 0)
1241
        return -1;
1242
1243
10744
    s->current_picture_ptr = pic;
1244
    // FIXME use only the vars from current_pic
1245
10744
    s->current_picture_ptr->f->top_field_first = s->top_field_first;
1246
10744
    if (s->codec_id == AV_CODEC_ID_MPEG1VIDEO ||
1247
10264
        s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1248
3487
        if (s->picture_structure != PICT_FRAME)
1249
602
            s->current_picture_ptr->f->top_field_first =
1250
602
                (s->picture_structure == PICT_TOP_FIELD) == s->first_field;
1251
    }
1252
12646
    s->current_picture_ptr->f->interlaced_frame = !s->progressive_frame &&
1253
1902
                                                 !s->progressive_sequence;
1254
10744
    s->current_picture_ptr->field_picture      =  s->picture_structure != PICT_FRAME;
1255
1256
10744
    s->current_picture_ptr->f->pict_type = s->pict_type;
1257
    // if (s->avctx->flags && AV_CODEC_FLAG_QSCALE)
1258
    //     s->current_picture_ptr->quality = s->new_picture_ptr->quality;
1259
10744
    s->current_picture_ptr->f->key_frame = s->pict_type == AV_PICTURE_TYPE_I;
1260
1261
10744
    if ((ret = ff_mpeg_ref_picture(s->avctx, &s->current_picture,
1262
                                   s->current_picture_ptr)) < 0)
1263
        return ret;
1264
1265
10744
    if (s->pict_type != AV_PICTURE_TYPE_B) {
1266
8266
        s->last_picture_ptr = s->next_picture_ptr;
1267
8266
        if (!s->droppable)
1268
8266
            s->next_picture_ptr = s->current_picture_ptr;
1269
    }
1270
    ff_dlog(s->avctx, "L%p N%p C%p L%p N%p C%p type:%d drop:%d\n",
1271
            s->last_picture_ptr, s->next_picture_ptr,s->current_picture_ptr,
1272
            s->last_picture_ptr    ? s->last_picture_ptr->f->data[0]    : NULL,
1273
            s->next_picture_ptr    ? s->next_picture_ptr->f->data[0]    : NULL,
1274
            s->current_picture_ptr ? s->current_picture_ptr->f->data[0] : NULL,
1275
            s->pict_type, s->droppable);
1276
1277

10744
    if ((!s->last_picture_ptr || !s->last_picture_ptr->f->buf[0]) &&
1278
296
        (s->pict_type != AV_PICTURE_TYPE_I)) {
1279
        int h_chroma_shift, v_chroma_shift;
1280
6
        av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt,
1281
                                         &h_chroma_shift, &v_chroma_shift);
1282

6
        if (s->pict_type == AV_PICTURE_TYPE_B && s->next_picture_ptr && s->next_picture_ptr->f->buf[0])
1283
            av_log(avctx, AV_LOG_DEBUG,
1284
                   "allocating dummy last picture for B frame\n");
1285
6
        else if (s->pict_type != AV_PICTURE_TYPE_I)
1286
6
            av_log(avctx, AV_LOG_ERROR,
1287
                   "warning: first frame is no keyframe\n");
1288
1289
        /* Allocate a dummy frame */
1290
6
        i = ff_find_unused_picture(s->avctx, s->picture, 0);
1291
6
        if (i < 0) {
1292
            av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1293
            return i;
1294
        }
1295
6
        s->last_picture_ptr = &s->picture[i];
1296
1297
6
        s->last_picture_ptr->reference   = 3;
1298
6
        s->last_picture_ptr->f->key_frame = 0;
1299
6
        s->last_picture_ptr->f->pict_type = AV_PICTURE_TYPE_P;
1300
1301
6
        if (alloc_picture(s, s->last_picture_ptr) < 0) {
1302
            s->last_picture_ptr = NULL;
1303
            return -1;
1304
        }
1305
1306
6
        if (!avctx->hwaccel) {
1307
1734
            for(i=0; i<avctx->height; i++)
1308
1728
                memset(s->last_picture_ptr->f->data[0] + s->last_picture_ptr->f->linesize[0]*i,
1309
1728
                       0x80, avctx->width);
1310
6
            if (s->last_picture_ptr->f->data[2]) {
1311
870
                for(i=0; i<AV_CEIL_RSHIFT(avctx->height, v_chroma_shift); i++) {
1312
864
                    memset(s->last_picture_ptr->f->data[1] + s->last_picture_ptr->f->linesize[1]*i,
1313
864
                        0x80, AV_CEIL_RSHIFT(avctx->width, h_chroma_shift));
1314
864
                    memset(s->last_picture_ptr->f->data[2] + s->last_picture_ptr->f->linesize[2]*i,
1315
864
                        0x80, AV_CEIL_RSHIFT(avctx->width, h_chroma_shift));
1316
                }
1317
            }
1318
1319

6
            if(s->codec_id == AV_CODEC_ID_FLV1 || s->codec_id == AV_CODEC_ID_H263){
1320
                for(i=0; i<avctx->height; i++)
1321
                memset(s->last_picture_ptr->f->data[0] + s->last_picture_ptr->f->linesize[0]*i, 16, avctx->width);
1322
            }
1323
        }
1324
1325
6
        ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 0);
1326
6
        ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 1);
1327
    }
1328

10744
    if ((!s->next_picture_ptr || !s->next_picture_ptr->f->buf[0]) &&
1329
        s->pict_type == AV_PICTURE_TYPE_B) {
1330
        /* Allocate a dummy frame */
1331
        i = ff_find_unused_picture(s->avctx, s->picture, 0);
1332
        if (i < 0) {
1333
            av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1334
            return i;
1335
        }
1336
        s->next_picture_ptr = &s->picture[i];
1337
1338
        s->next_picture_ptr->reference   = 3;
1339
        s->next_picture_ptr->f->key_frame = 0;
1340
        s->next_picture_ptr->f->pict_type = AV_PICTURE_TYPE_P;
1341
1342
        if (alloc_picture(s, s->next_picture_ptr) < 0) {
1343
            s->next_picture_ptr = NULL;
1344
            return -1;
1345
        }
1346
        ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 0);
1347
        ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 1);
1348
    }
1349
1350
#if 0 // BUFREF-FIXME
1351
    memset(s->last_picture.f->data, 0, sizeof(s->last_picture.f->data));
1352
    memset(s->next_picture.f->data, 0, sizeof(s->next_picture.f->data));
1353
#endif
1354
10744
    if (s->last_picture_ptr) {
1355

20908
        if (s->last_picture_ptr->f->buf[0] &&
1356
10454
            (ret = ff_mpeg_ref_picture(s->avctx, &s->last_picture,
1357
                                       s->last_picture_ptr)) < 0)
1358
            return ret;
1359
    }
1360
10744
    if (s->next_picture_ptr) {
1361

21488
        if (s->next_picture_ptr->f->buf[0] &&
1362
10744
            (ret = ff_mpeg_ref_picture(s->avctx, &s->next_picture,
1363
                                       s->next_picture_ptr)) < 0)
1364
            return ret;
1365
    }
1366
1367

10744
    av_assert0(s->pict_type == AV_PICTURE_TYPE_I || (s->last_picture_ptr &&
1368
                                                 s->last_picture_ptr->f->buf[0]));
1369
1370
10744
    if (s->picture_structure!= PICT_FRAME) {
1371
        int i;
1372
3010
        for (i = 0; i < 4; i++) {
1373
2408
            if (s->picture_structure == PICT_BOTTOM_FIELD) {
1374
2404
                s->current_picture.f->data[i] +=
1375
2404
                    s->current_picture.f->linesize[i];
1376
            }
1377
2408
            s->current_picture.f->linesize[i] *= 2;
1378
2408
            s->last_picture.f->linesize[i]    *= 2;
1379
2408
            s->next_picture.f->linesize[i]    *= 2;
1380
        }
1381
    }
1382
1383
    /* set dequantizer, we can't do it during init as
1384
     * it might change for MPEG-4 and we can't do it in the header
1385
     * decode as init is not called for MPEG-4 there yet */
1386

10744
    if (s->mpeg_quant || s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1387
3047
        s->dct_unquantize_intra = s->dct_unquantize_mpeg2_intra;
1388
3047
        s->dct_unquantize_inter = s->dct_unquantize_mpeg2_inter;
1389

7697
    } else if (s->out_format == FMT_H263 || s->out_format == FMT_H261) {
1390
7217
        s->dct_unquantize_intra = s->dct_unquantize_h263_intra;
1391
7217
        s->dct_unquantize_inter = s->dct_unquantize_h263_inter;
1392
    } else {
1393
480
        s->dct_unquantize_intra = s->dct_unquantize_mpeg1_intra;
1394
480
        s->dct_unquantize_inter = s->dct_unquantize_mpeg1_inter;
1395
    }
1396
1397
10744
    if (s->avctx->debug & FF_DEBUG_NOMC) {
1398
        gray_frame(s->current_picture_ptr->f);
1399
    }
1400
1401
10744
    return 0;
1402
}
1403
1404
/* called after a frame has been decoded. */
1405
10744
void ff_mpv_frame_end(MpegEncContext *s)
1406
{
1407
10744
    emms_c();
1408
1409
10744
    if (s->current_picture.reference)
1410
8266
        ff_thread_report_progress(&s->current_picture_ptr->tf, INT_MAX, 0);
1411
10744
}
1412
1413
10561
void ff_print_debug_info(MpegEncContext *s, Picture *p, AVFrame *pict)
1414
{
1415
10561
    ff_print_debug_info2(s->avctx, pict, s->mbskip_table, p->mb_type,
1416
10561
                         p->qscale_table, p->motion_val, &s->low_delay,
1417
                         s->mb_width, s->mb_height, s->mb_stride, s->quarter_sample);
1418
10561
}
1419
1420
9793
int ff_mpv_export_qp_table(MpegEncContext *s, AVFrame *f, Picture *p, int qp_type)
1421
{
1422
    AVVideoEncParams *par;
1423
9793
    int mult = (qp_type == FF_QSCALE_TYPE_MPEG1) ? 2 : 1;
1424
9793
    unsigned int nb_mb = p->alloc_mb_height * p->alloc_mb_width;
1425
    unsigned int x, y;
1426
1427
9793
    if (!(s->avctx->export_side_data & AV_CODEC_EXPORT_DATA_VIDEO_ENC_PARAMS))
1428
9778
        return 0;
1429
1430
15
    par = av_video_enc_params_create_side_data(f, AV_VIDEO_ENC_PARAMS_MPEG2, nb_mb);
1431
15
    if (!par)
1432
        return AVERROR(ENOMEM);
1433
1434
285
    for (y = 0; y < p->alloc_mb_height; y++)
1435
6210
        for (x = 0; x < p->alloc_mb_width; x++) {
1436
5940
            const unsigned int block_idx = y * p->alloc_mb_width + x;
1437
5940
            const unsigned int     mb_xy = y * p->alloc_mb_stride + x;
1438
5940
            AVVideoBlockParams *b = av_video_enc_params_block(par, block_idx);
1439
1440
5940
            b->src_x = x * 16;
1441
5940
            b->src_y = y * 16;
1442
5940
            b->w     = 16;
1443
5940
            b->h     = 16;
1444
1445
5940
            b->delta_qp = p->qscale_table[mb_xy] * mult;
1446
        }
1447
1448
15
    return 0;
1449
}
1450
1451
126300
static inline int hpel_motion_lowres(MpegEncContext *s,
1452
                                     uint8_t *dest, uint8_t *src,
1453
                                     int field_based, int field_select,
1454
                                     int src_x, int src_y,
1455
                                     int width, int height, ptrdiff_t stride,
1456
                                     int h_edge_pos, int v_edge_pos,
1457
                                     int w, int h, h264_chroma_mc_func *pix_op,
1458
                                     int motion_x, int motion_y)
1459
{
1460
126300
    const int lowres   = s->avctx->lowres;
1461
126300
    const int op_index = FFMIN(lowres, 3);
1462
126300
    const int s_mask   = (2 << lowres) - 1;
1463
126300
    int emu = 0;
1464
    int sx, sy;
1465
1466
126300
    if (s->quarter_sample) {
1467
        motion_x /= 2;
1468
        motion_y /= 2;
1469
    }
1470
1471
126300
    sx = motion_x & s_mask;
1472
126300
    sy = motion_y & s_mask;
1473
126300
    src_x += motion_x >> lowres + 1;
1474
126300
    src_y += motion_y >> lowres + 1;
1475
1476
126300
    src   += src_y * stride + src_x;
1477
1478
126300
    if ((unsigned)src_x > FFMAX( h_edge_pos - (!!sx) - w,                 0) ||
1479
126300
        (unsigned)src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
1480
298
        s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, src,
1481
                                 s->linesize, s->linesize,
1482
298
                                 w + 1, (h + 1) << field_based,
1483
                                 src_x, src_y   << field_based,
1484
                                 h_edge_pos, v_edge_pos);
1485
298
        src = s->sc.edge_emu_buffer;
1486
298
        emu = 1;
1487
    }
1488
1489
126300
    sx = (sx << 2) >> lowres;
1490
126300
    sy = (sy << 2) >> lowres;
1491
126300
    if (field_select)
1492
        src += s->linesize;
1493
126300
    pix_op[op_index](dest, src, stride, h, sx, sy);
1494
126300
    return emu;
1495
}
1496
1497
/* apply one mpeg motion vector to the three components */
1498
24814
static av_always_inline void mpeg_motion_lowres(MpegEncContext *s,
1499
                                                uint8_t *dest_y,
1500
                                                uint8_t *dest_cb,
1501
                                                uint8_t *dest_cr,
1502
                                                int field_based,
1503
                                                int bottom_field,
1504
                                                int field_select,
1505
                                                uint8_t **ref_picture,
1506
                                                h264_chroma_mc_func *pix_op,
1507
                                                int motion_x, int motion_y,
1508
                                                int h, int mb_y)
1509
{
1510
    uint8_t *ptr_y, *ptr_cb, *ptr_cr;
1511
    int mx, my, src_x, src_y, uvsrc_x, uvsrc_y, sx, sy, uvsx, uvsy;
1512
    ptrdiff_t uvlinesize, linesize;
1513
24814
    const int lowres     = s->avctx->lowres;
1514
24814
    const int op_index   = FFMIN(lowres-1+s->chroma_x_shift, 3);
1515
24814
    const int block_s    = 8>>lowres;
1516
24814
    const int s_mask     = (2 << lowres) - 1;
1517
24814
    const int h_edge_pos = s->h_edge_pos >> lowres;
1518
24814
    const int v_edge_pos = s->v_edge_pos >> lowres;
1519
24814
    linesize   = s->current_picture.f->linesize[0] << field_based;
1520
24814
    uvlinesize = s->current_picture.f->linesize[1] << field_based;
1521
1522
    // FIXME obviously not perfect but qpel will not work in lowres anyway
1523
24814
    if (s->quarter_sample) {
1524
        motion_x /= 2;
1525
        motion_y /= 2;
1526
    }
1527
1528
24814
    if(field_based){
1529
        motion_y += (bottom_field - field_select)*((1 << lowres)-1);
1530
    }
1531
1532
24814
    sx = motion_x & s_mask;
1533
24814
    sy = motion_y & s_mask;
1534
24814
    src_x = s->mb_x * 2 * block_s + (motion_x >> lowres + 1);
1535
24814
    src_y = (mb_y * 2 * block_s >> field_based) + (motion_y >> lowres + 1);
1536
1537
24814
    if (s->out_format == FMT_H263) {
1538
24814
        uvsx    = ((motion_x >> 1) & s_mask) | (sx & 1);
1539
24814
        uvsy    = ((motion_y >> 1) & s_mask) | (sy & 1);
1540
24814
        uvsrc_x = src_x >> 1;
1541
24814
        uvsrc_y = src_y >> 1;
1542
    } else if (s->out_format == FMT_H261) {
1543
        // even chroma mv's are full pel in H261
1544
        mx      = motion_x / 4;
1545
        my      = motion_y / 4;
1546
        uvsx    = (2 * mx) & s_mask;
1547
        uvsy    = (2 * my) & s_mask;
1548
        uvsrc_x = s->mb_x * block_s + (mx >> lowres);
1549
        uvsrc_y =    mb_y * block_s + (my >> lowres);
1550
    } else {
1551
        if(s->chroma_y_shift){
1552
            mx      = motion_x / 2;
1553
            my      = motion_y / 2;
1554
            uvsx    = mx & s_mask;
1555
            uvsy    = my & s_mask;
1556
            uvsrc_x = s->mb_x * block_s                 + (mx >> lowres + 1);
1557
            uvsrc_y =   (mb_y * block_s >> field_based) + (my >> lowres + 1);
1558
        } else {
1559
            if(s->chroma_x_shift){
1560
            //Chroma422
1561
                mx = motion_x / 2;
1562
                uvsx = mx & s_mask;
1563
                uvsy = motion_y & s_mask;
1564
                uvsrc_y = src_y;
1565
                uvsrc_x = s->mb_x*block_s               + (mx >> (lowres+1));
1566
            } else {
1567
            //Chroma444
1568
                uvsx = motion_x & s_mask;
1569
                uvsy = motion_y & s_mask;
1570
                uvsrc_x = src_x;
1571
                uvsrc_y = src_y;
1572
            }
1573
        }
1574
    }
1575
1576
24814
    ptr_y  = ref_picture[0] + src_y   * linesize   + src_x;
1577
24814
    ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
1578
24814
    ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
1579
1580

24814
    if ((unsigned) src_x > FFMAX( h_edge_pos - (!!sx) - 2 * block_s,       0) || uvsrc_y<0 ||
1581
24712
        (unsigned) src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
1582
197
        s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr_y,
1583
                                 linesize >> field_based, linesize >> field_based,
1584
                                 17, 17 + field_based,
1585
                                src_x, src_y << field_based, h_edge_pos,
1586
                                v_edge_pos);
1587
197
        ptr_y = s->sc.edge_emu_buffer;
1588
        if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
1589
197
            uint8_t *ubuf = s->sc.edge_emu_buffer + 18 * s->linesize;
1590
197
            uint8_t *vbuf =ubuf + 10 * s->uvlinesize;
1591
197
            if (s->workaround_bugs & FF_BUG_IEDGE)
1592
                vbuf -= s->uvlinesize;
1593
197
            s->vdsp.emulated_edge_mc(ubuf,  ptr_cb,
1594
                                     uvlinesize >> field_based, uvlinesize >> field_based,
1595
                                     9, 9 + field_based,
1596
                                    uvsrc_x, uvsrc_y << field_based,
1597
                                    h_edge_pos >> 1, v_edge_pos >> 1);
1598
197
            s->vdsp.emulated_edge_mc(vbuf,  ptr_cr,
1599
                                     uvlinesize >> field_based,uvlinesize >> field_based,
1600
                                     9, 9 + field_based,
1601
                                    uvsrc_x, uvsrc_y << field_based,
1602
                                    h_edge_pos >> 1, v_edge_pos >> 1);
1603
197
            ptr_cb = ubuf;
1604
197
            ptr_cr = vbuf;
1605
        }
1606
    }
1607
1608
    // FIXME use this for field pix too instead of the obnoxious hack which changes picture.f->data
1609
24814
    if (bottom_field) {
1610
        dest_y  += s->linesize;
1611
        dest_cb += s->uvlinesize;
1612
        dest_cr += s->uvlinesize;
1613
    }
1614
1615
24814
    if (field_select) {
1616
        ptr_y   += s->linesize;
1617
        ptr_cb  += s->uvlinesize;
1618
        ptr_cr  += s->uvlinesize;
1619
    }
1620
1621
24814
    sx = (sx << 2) >> lowres;
1622
24814
    sy = (sy << 2) >> lowres;
1623
24814
    pix_op[lowres - 1](dest_y, ptr_y, linesize, h, sx, sy);
1624
1625
    if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
1626
24814
        int hc = s->chroma_y_shift ? (h+1-bottom_field)>>1 : h;
1627
24814
        uvsx = (uvsx << 2) >> lowres;
1628
24814
        uvsy = (uvsy << 2) >> lowres;
1629
24814
        if (hc) {
1630
24814
            pix_op[op_index](dest_cb, ptr_cb, uvlinesize, hc, uvsx, uvsy);
1631
24814
            pix_op[op_index](dest_cr, ptr_cr, uvlinesize, hc, uvsx, uvsy);
1632
        }
1633
    }
1634
    // FIXME h261 lowres loop filter
1635
24814
}
1636
1637
31575
static inline void chroma_4mv_motion_lowres(MpegEncContext *s,
1638
                                            uint8_t *dest_cb, uint8_t *dest_cr,
1639
                                            uint8_t **ref_picture,
1640
                                            h264_chroma_mc_func * pix_op,
1641
                                            int mx, int my)
1642
{
1643
31575
    const int lowres     = s->avctx->lowres;
1644
31575
    const int op_index   = FFMIN(lowres, 3);
1645
31575
    const int block_s    = 8 >> lowres;
1646
31575
    const int s_mask     = (2 << lowres) - 1;
1647
31575
    const int h_edge_pos = s->h_edge_pos >> lowres + 1;
1648
31575
    const int v_edge_pos = s->v_edge_pos >> lowres + 1;
1649
31575
    int emu = 0, src_x, src_y, sx, sy;
1650
    ptrdiff_t offset;
1651
    uint8_t *ptr;
1652
1653
31575
    if (s->quarter_sample) {
1654
        mx /= 2;
1655
        my /= 2;
1656
    }
1657
1658
    /* In case of 8X8, we construct a single chroma motion vector
1659
       with a special rounding */
1660
31575
    mx = ff_h263_round_chroma(mx);
1661
31575
    my = ff_h263_round_chroma(my);
1662
1663
31575
    sx = mx & s_mask;
1664
31575
    sy = my & s_mask;
1665
31575
    src_x = s->mb_x * block_s + (mx >> lowres + 1);
1666
31575
    src_y = s->mb_y * block_s + (my >> lowres + 1);
1667
1668
31575
    offset = src_y * s->uvlinesize + src_x;
1669
31575
    ptr = ref_picture[1] + offset;
1670
31575
    if ((unsigned) src_x > FFMAX(h_edge_pos - (!!sx) - block_s, 0) ||
1671
31575
        (unsigned) src_y > FFMAX(v_edge_pos - (!!sy) - block_s, 0)) {
1672
144
        s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr,
1673
                                 s->uvlinesize, s->uvlinesize,
1674
                                 9, 9,
1675
                                 src_x, src_y, h_edge_pos, v_edge_pos);
1676
144
        ptr = s->sc.edge_emu_buffer;
1677
144
        emu = 1;
1678
    }
1679
31575
    sx = (sx << 2) >> lowres;
1680
31575
    sy = (sy << 2) >> lowres;
1681
31575
    pix_op[op_index](dest_cb, ptr, s->uvlinesize, block_s, sx, sy);
1682
1683
31575
    ptr = ref_picture[2] + offset;
1684
31575
    if (emu) {
1685
144
        s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr,
1686
                                 s->uvlinesize, s->uvlinesize,
1687
                                 9, 9,
1688
                                 src_x, src_y, h_edge_pos, v_edge_pos);
1689
144
        ptr = s->sc.edge_emu_buffer;
1690
    }
1691
31575
    pix_op[op_index](dest_cr, ptr, s->uvlinesize, block_s, sx, sy);
1692
31575
}
1693
1694
/**
1695
 * motion compensation of a single macroblock
1696
 * @param s context
1697
 * @param dest_y luma destination pointer
1698
 * @param dest_cb chroma cb/u destination pointer
1699
 * @param dest_cr chroma cr/v destination pointer
1700
 * @param dir direction (0->forward, 1->backward)
1701
 * @param ref_picture array[3] of pointers to the 3 planes of the reference picture
1702
 * @param pix_op halfpel motion compensation function (average or put normally)
1703
 * the motion vectors are taken from s->mv and the MV type from s->mv_type
1704
 */
1705
56389
static inline void MPV_motion_lowres(MpegEncContext *s,
1706
                                     uint8_t *dest_y, uint8_t *dest_cb,
1707
                                     uint8_t *dest_cr,
1708
                                     int dir, uint8_t **ref_picture,
1709
                                     h264_chroma_mc_func *pix_op)
1710
{
1711
    int mx, my;
1712
    int mb_x, mb_y, i;
1713
56389
    const int lowres  = s->avctx->lowres;
1714
56389
    const int block_s = 8 >>lowres;
1715
1716
56389
    mb_x = s->mb_x;
1717
56389
    mb_y = s->mb_y;
1718
1719

56389
    switch (s->mv_type) {
1720
24814
    case MV_TYPE_16X16:
1721
24814
        mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1722
                           0, 0, 0,
1723
                           ref_picture, pix_op,
1724
                           s->mv[dir][0][0], s->mv[dir][0][1],
1725
                           2 * block_s, mb_y);
1726
24814
        break;
1727
31575
    case MV_TYPE_8X8:
1728
31575
        mx = 0;
1729
31575
        my = 0;
1730
157875
        for (i = 0; i < 4; i++) {
1731
126300
            hpel_motion_lowres(s, dest_y + ((i & 1) + (i >> 1) *
1732
126300
                               s->linesize) * block_s,
1733
                               ref_picture[0], 0, 0,
1734
126300
                               (2 * mb_x + (i & 1)) * block_s,
1735
126300
                               (2 * mb_y + (i >> 1)) * block_s,
1736
                               s->width, s->height, s->linesize,
1737
126300
                               s->h_edge_pos >> lowres, s->v_edge_pos >> lowres,
1738
                               block_s, block_s, pix_op,
1739
                               s->mv[dir][i][0], s->mv[dir][i][1]);
1740
1741
126300
            mx += s->mv[dir][i][0];
1742
126300
            my += s->mv[dir][i][1];
1743
        }
1744
1745
        if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY))
1746
31575
            chroma_4mv_motion_lowres(s, dest_cb, dest_cr, ref_picture,
1747
                                     pix_op, mx, my);
1748
31575
        break;
1749
    case MV_TYPE_FIELD:
1750
        if (s->picture_structure == PICT_FRAME) {
1751
            /* top field */
1752
            mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1753
                               1, 0, s->field_select[dir][0],
1754
                               ref_picture, pix_op,
1755
                               s->mv[dir][0][0], s->mv[dir][0][1],
1756
                               block_s, mb_y);
1757
            /* bottom field */
1758
            mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1759
                               1, 1, s->field_select[dir][1],
1760
                               ref_picture, pix_op,
1761
                               s->mv[dir][1][0], s->mv[dir][1][1],
1762
                               block_s, mb_y);
1763
        } else {
1764
            if (s->picture_structure != s->field_select[dir][0] + 1 &&
1765
                s->pict_type != AV_PICTURE_TYPE_B && !s->first_field) {
1766
                ref_picture = s->current_picture_ptr->f->data;
1767
1768
            }
1769
            mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1770
                               0, 0, s->field_select[dir][0],
1771
                               ref_picture, pix_op,
1772
                               s->mv[dir][0][0],
1773
                               s->mv[dir][0][1], 2 * block_s, mb_y >> 1);
1774
            }
1775
        break;
1776
    case MV_TYPE_16X8:
1777
        for (i = 0; i < 2; i++) {
1778
            uint8_t **ref2picture;
1779
1780
            if (s->picture_structure == s->field_select[dir][i] + 1 ||
1781
                s->pict_type == AV_PICTURE_TYPE_B || s->first_field) {
1782
                ref2picture = ref_picture;
1783
            } else {
1784
                ref2picture = s->current_picture_ptr->f->data;
1785
            }
1786
1787
            mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1788
                               0, 0, s->field_select[dir][i],
1789
                               ref2picture, pix_op,
1790
                               s->mv[dir][i][0], s->mv[dir][i][1] +
1791
                               2 * block_s * i, block_s, mb_y >> 1);
1792
1793
            dest_y  +=  2 * block_s *  s->linesize;
1794
            dest_cb += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
1795
            dest_cr += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
1796
        }
1797
        break;
1798
    case MV_TYPE_DMV:
1799
        if (s->picture_structure == PICT_FRAME) {
1800
            for (i = 0; i < 2; i++) {
1801
                int j;
1802
                for (j = 0; j < 2; j++) {
1803
                    mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1804
                                       1, j, j ^ i,
1805
                                       ref_picture, pix_op,
1806
                                       s->mv[dir][2 * i + j][0],
1807
                                       s->mv[dir][2 * i + j][1],
1808
                                       block_s, mb_y);
1809
                }
1810
                pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
1811
            }
1812
        } else {
1813
            for (i = 0; i < 2; i++) {
1814
                mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1815
                                   0, 0, s->picture_structure != i + 1,
1816
                                   ref_picture, pix_op,
1817
                                   s->mv[dir][2 * i][0],s->mv[dir][2 * i][1],
1818
                                   2 * block_s, mb_y >> 1);
1819
1820
                // after put we make avg of the same block
1821
                pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
1822
1823
                // opposite parity is always in the same
1824
                // frame if this is second field
1825
                if (!s->first_field) {
1826
                    ref_picture = s->current_picture_ptr->f->data;
1827
                }
1828
            }
1829
        }
1830
        break;
1831
56389
    default:
1832
        av_assert2(0);
1833
    }
1834
56389
}
1835
1836
/**
1837
 * find the lowest MB row referenced in the MVs
1838
 */
1839
static int lowest_referenced_row(MpegEncContext *s, int dir)
1840
{
1841
    int my_max = INT_MIN, my_min = INT_MAX, qpel_shift = !s->quarter_sample;
1842
    int my, off, i, mvs;
1843
1844
    if (s->picture_structure != PICT_FRAME || s->mcsel)
1845
        goto unhandled;
1846
1847
    switch (s->mv_type) {
1848
        case MV_TYPE_16X16:
1849
            mvs = 1;
1850
            break;
1851
        case MV_TYPE_16X8:
1852
            mvs = 2;
1853
            break;
1854
        case MV_TYPE_8X8:
1855
            mvs = 4;
1856
            break;
1857
        default:
1858
            goto unhandled;
1859
    }
1860
1861
    for (i = 0; i < mvs; i++) {
1862
        my = s->mv[dir][i][1];
1863
        my_max = FFMAX(my_max, my);
1864
        my_min = FFMIN(my_min, my);
1865
    }
1866
1867
    off = ((FFMAX(-my_min, my_max)<<qpel_shift) + 63) >> 6;
1868
1869
    return av_clip(s->mb_y + off, 0, s->mb_height - 1);
1870
unhandled:
1871
    return s->mb_height-1;
1872
}
1873
1874
/* put block[] to dest[] */
1875
4748504
static inline void put_dct(MpegEncContext *s,
1876
                           int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
1877
{
1878
4748504
    s->dct_unquantize_intra(s, block, i, qscale);
1879
4748504
    s->idsp.idct_put(dest, line_size, block);
1880
4748504
}
1881
1882
/* add block[] to dest[] */
1883
19397348
static inline void add_dct(MpegEncContext *s,
1884
                           int16_t *block, int i, uint8_t *dest, int line_size)
1885
{
1886
19397348
    if (s->block_last_index[i] >= 0) {
1887
7073928
        s->idsp.idct_add(dest, line_size, block);
1888
    }
1889
19397348
}
1890
1891
22118666
static inline void add_dequant_dct(MpegEncContext *s,
1892
                           int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
1893
{
1894
22118666
    if (s->block_last_index[i] >= 0) {
1895
8940994
        s->dct_unquantize_inter(s, block, i, qscale);
1896
1897
8940994
        s->idsp.idct_add(dest, line_size, block);
1898
    }
1899
22118666
}
1900
1901
/**
1902
 * Clean dc, ac, coded_block for the current non-intra MB.
1903
 */
1904
385434
void ff_clean_intra_table_entries(MpegEncContext *s)
1905
{
1906
385434
    int wrap = s->b8_stride;
1907
385434
    int xy = s->block_index[0];
1908
1909
385434
    s->dc_val[0][xy           ] =
1910
385434
    s->dc_val[0][xy + 1       ] =
1911
385434
    s->dc_val[0][xy     + wrap] =
1912
385434
    s->dc_val[0][xy + 1 + wrap] = 1024;
1913
    /* ac pred */
1914
385434
    memset(s->ac_val[0][xy       ], 0, 32 * sizeof(int16_t));
1915
385434
    memset(s->ac_val[0][xy + wrap], 0, 32 * sizeof(int16_t));
1916
385434
    if (s->msmpeg4_version>=3) {
1917
45701
        s->coded_block[xy           ] =
1918
45701
        s->coded_block[xy + 1       ] =
1919
45701
        s->coded_block[xy     + wrap] =
1920
45701
        s->coded_block[xy + 1 + wrap] = 0;
1921
    }
1922
    /* chroma */
1923
385434
    wrap = s->mb_stride;
1924
385434
    xy = s->mb_x + s->mb_y * wrap;
1925
385434
    s->dc_val[1][xy] =
1926
385434
    s->dc_val[2][xy] = 1024;
1927
    /* ac pred */
1928
385434
    memset(s->ac_val[1][xy], 0, 16 * sizeof(int16_t));
1929
385434
    memset(s->ac_val[2][xy], 0, 16 * sizeof(int16_t));
1930
1931
385434
    s->mbintra_table[xy]= 0;
1932
385434
}
1933
1934
/* generic function called after a macroblock has been parsed by the
1935
   decoder or after it has been encoded by the encoder.
1936
1937
   Important variables used:
1938
   s->mb_intra : true if intra macroblock
1939
   s->mv_dir   : motion vector direction
1940
   s->mv_type  : motion vector type
1941
   s->mv       : motion vector
1942
   s->interlaced_dct : true if interlaced dct used (mpeg2)
1943
 */
1944
static av_always_inline
1945
8930695
void mpv_reconstruct_mb_internal(MpegEncContext *s, int16_t block[12][64],
1946
                            int lowres_flag, int is_mpeg12)
1947
{
1948
8930695
    const int mb_xy = s->mb_y * s->mb_stride + s->mb_x;
1949
1950
    if (CONFIG_XVMC &&
1951
        s->avctx->hwaccel && s->avctx->hwaccel->decode_mb) {
1952
        s->avctx->hwaccel->decode_mb(s);//xvmc uses pblocks
1953
        return;
1954
    }
1955
1956
8930695
    if(s->avctx->debug&FF_DEBUG_DCT_COEFF) {
1957
       /* print DCT coefficients */
1958
       int i,j;
1959
       av_log(s->avctx, AV_LOG_DEBUG, "DCT coeffs of MB at %dx%d:\n", s->mb_x, s->mb_y);
1960
       for(i=0; i<6; i++){
1961
           for(j=0; j<64; j++){
1962
               av_log(s->avctx, AV_LOG_DEBUG, "%5d",
1963
                      block[i][s->idsp.idct_permutation[j]]);
1964
           }
1965
           av_log(s->avctx, AV_LOG_DEBUG, "\n");
1966
       }
1967
    }
1968
1969
8930695
    s->current_picture.qscale_table[mb_xy] = s->qscale;
1970
1971
    /* update DC predictors for P macroblocks */
1972
8930695
    if (!s->mb_intra) {
1973

7187879
        if (!is_mpeg12 && (s->h263_pred || s->h263_aic)) {
1974
3335185
            if(s->mbintra_table[mb_xy])
1975
307810
                ff_clean_intra_table_entries(s);
1976
        } else {
1977
3852694
            s->last_dc[0] =
1978
3852694
            s->last_dc[1] =
1979
3852694
            s->last_dc[2] = 128 << s->intra_dc_precision;
1980
        }
1981
    }
1982

1742816
    else if (!is_mpeg12 && (s->h263_pred || s->h263_aic))
1983
454235
        s->mbintra_table[mb_xy]=1;
1984
1985

8930695
    if ((s->avctx->flags & AV_CODEC_FLAG_PSNR) || s->frame_skip_threshold || s->frame_skip_factor ||
1986

8930695
        !(s->encoding && (s->intra_only || s->pict_type == AV_PICTURE_TYPE_B) &&
1987
1926989
          s->avctx->mb_decision != FF_MB_DECISION_RD)) { // FIXME precalc
1988
        uint8_t *dest_y, *dest_cb, *dest_cr;
1989
        int dct_linesize, dct_offset;
1990
        op_pixels_func (*op_pix)[4];
1991
        qpel_mc_func (*op_qpix)[16];
1992
8023501
        const int linesize   = s->current_picture.f->linesize[0]; //not s->linesize as this would be wrong for field pics
1993
8023501
        const int uvlinesize = s->current_picture.f->linesize[1];
1994


8023501
        const int readable= s->pict_type != AV_PICTURE_TYPE_B || s->encoding || s->avctx->draw_horiz_band || lowres_flag;
1995
8023501
        const int block_size= lowres_flag ? 8>>s->avctx->lowres : 8;
1996
1997
        /* avoid copy if macroblock skipped in last frame too */
1998
        /* skip only during decoding as we might trash the buffers during encoding a bit */
1999
8023501
        if(!s->encoding){
2000
4512594
            uint8_t *mbskip_ptr = &s->mbskip_table[mb_xy];
2001
2002
4512594
            if (s->mb_skipped) {
2003
322933
                s->mb_skipped= 0;
2004
                av_assert2(s->pict_type!=AV_PICTURE_TYPE_I);
2005
322933
                *mbskip_ptr = 1;
2006
4189661
            } else if(!s->current_picture.reference) {
2007
889827
                *mbskip_ptr = 1;
2008
            } else{
2009
3299834
                *mbskip_ptr = 0; /* not skipped */
2010
            }
2011
        }
2012
2013
8023501
        dct_linesize = linesize << s->interlaced_dct;
2014
8023501
        dct_offset   = s->interlaced_dct ? linesize : linesize * block_size;
2015
2016
8023501
        if(readable){
2017
7049010
            dest_y=  s->dest[0];
2018
7049010
            dest_cb= s->dest[1];
2019
7049010
            dest_cr= s->dest[2];
2020
        }else{
2021
974491
            dest_y = s->sc.b_scratchpad;
2022
974491
            dest_cb= s->sc.b_scratchpad+16*linesize;
2023
974491
            dest_cr= s->sc.b_scratchpad+32*linesize;
2024
        }
2025
2026
8023501
        if (!s->mb_intra) {
2027
            /* motion handling */
2028
            /* decoding or more than one mb_type (MC was already done otherwise) */
2029
6971183
            if(!s->encoding){
2030
2031
3939073
                if(HAVE_THREADS && s->avctx->active_thread_type&FF_THREAD_FRAME) {
2032
                    if (s->mv_dir & MV_DIR_FORWARD) {
2033
                        ff_thread_await_progress(&s->last_picture_ptr->tf,
2034
                                                 lowest_referenced_row(s, 0),
2035
                                                 0);
2036
                    }
2037
                    if (s->mv_dir & MV_DIR_BACKWARD) {
2038
                        ff_thread_await_progress(&s->next_picture_ptr->tf,
2039
                                                 lowest_referenced_row(s, 1),
2040
                                                 0);
2041
                    }
2042
                }
2043
2044
3939073
                if(lowres_flag){
2045
41123
                    h264_chroma_mc_func *op_pix = s->h264chroma.put_h264_chroma_pixels_tab;
2046
2047
41123
                    if (s->mv_dir & MV_DIR_FORWARD) {
2048
37429
                        MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f->data, op_pix);
2049
37429
                        op_pix = s->h264chroma.avg_h264_chroma_pixels_tab;
2050
                    }
2051
41123
                    if (s->mv_dir & MV_DIR_BACKWARD) {
2052
18960
                        MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f->data, op_pix);
2053
                    }
2054
                }else{
2055
3897950
                    op_qpix = s->me.qpel_put;
2056

3897950
                    if ((!s->no_rounding) || s->pict_type==AV_PICTURE_TYPE_B){
2057
3138207
                        op_pix = s->hdsp.put_pixels_tab;
2058
                    }else{
2059
759743
                        op_pix = s->hdsp.put_no_rnd_pixels_tab;
2060
                    }
2061
3897950
                    if (s->mv_dir & MV_DIR_FORWARD) {
2062
3665515
                        ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f->data, op_pix, op_qpix);
2063
3665515
                        op_pix = s->hdsp.avg_pixels_tab;
2064
3665515
                        op_qpix= s->me.qpel_avg;
2065
                    }
2066
3897950
                    if (s->mv_dir & MV_DIR_BACKWARD) {
2067
757393
                        ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f->data, op_pix, op_qpix);
2068
                    }
2069
                }
2070
            }
2071
2072
            /* skip dequant / idct if we are really late ;) */
2073
6971183
            if(s->avctx->skip_idct){
2074
                if(  (s->avctx->skip_idct >= AVDISCARD_NONREF && s->pict_type == AV_PICTURE_TYPE_B)
2075
                   ||(s->avctx->skip_idct >= AVDISCARD_NONKEY && s->pict_type != AV_PICTURE_TYPE_I)
2076
                   || s->avctx->skip_idct >= AVDISCARD_ALL)
2077
                    goto skip_idct;
2078
            }
2079
2080
            /* add dct residue */
2081


6971183
            if(s->encoding || !(   s->msmpeg4_version || s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO
2082

1784955
                                || (s->codec_id==AV_CODEC_ID_MPEG4 && !s->mpeg_quant))){
2083
3570576
                add_dequant_dct(s, block[0], 0, dest_y                          , dct_linesize, s->qscale);
2084
3570576
                add_dequant_dct(s, block[1], 1, dest_y              + block_size, dct_linesize, s->qscale);
2085
3570576
                add_dequant_dct(s, block[2], 2, dest_y + dct_offset             , dct_linesize, s->qscale);
2086
3570576
                add_dequant_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
2087
2088
3570576
                if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2089
3570576
                    if (s->chroma_y_shift){
2090
3222971
                        add_dequant_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
2091
3222971
                        add_dequant_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
2092
                    }else{
2093
347605
                        dct_linesize >>= 1;
2094
347605
                        dct_offset >>=1;
2095
347605
                        add_dequant_dct(s, block[4], 4, dest_cb,              dct_linesize, s->chroma_qscale);
2096
347605
                        add_dequant_dct(s, block[5], 5, dest_cr,              dct_linesize, s->chroma_qscale);
2097
347605
                        add_dequant_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
2098
347605
                        add_dequant_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
2099
                    }
2100
                }
2101

3400607
            } else if(is_mpeg12 || (s->codec_id != AV_CODEC_ID_WMV2)){
2102
3210458
                add_dct(s, block[0], 0, dest_y                          , dct_linesize);
2103
3210458
                add_dct(s, block[1], 1, dest_y              + block_size, dct_linesize);
2104
3210458
                add_dct(s, block[2], 2, dest_y + dct_offset             , dct_linesize);
2105
3210458
                add_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize);
2106
2107
3210458
                if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2108
3210458
                    if(s->chroma_y_shift){//Chroma420
2109
3143158
                        add_dct(s, block[4], 4, dest_cb, uvlinesize);
2110
3143158
                        add_dct(s, block[5], 5, dest_cr, uvlinesize);
2111
                    }else{
2112
                        //chroma422
2113
67300
                        dct_linesize = uvlinesize << s->interlaced_dct;
2114
67300
                        dct_offset   = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
2115
2116
67300
                        add_dct(s, block[4], 4, dest_cb, dct_linesize);
2117
67300
                        add_dct(s, block[5], 5, dest_cr, dct_linesize);
2118
67300
                        add_dct(s, block[6], 6, dest_cb+dct_offset, dct_linesize);
2119
67300
                        add_dct(s, block[7], 7, dest_cr+dct_offset, dct_linesize);
2120
67300
                        if(!s->chroma_x_shift){//Chroma444
2121
                            add_dct(s, block[8], 8, dest_cb+block_size, dct_linesize);
2122
                            add_dct(s, block[9], 9, dest_cr+block_size, dct_linesize);
2123
                            add_dct(s, block[10], 10, dest_cb+block_size+dct_offset, dct_linesize);
2124
                            add_dct(s, block[11], 11, dest_cr+block_size+dct_offset, dct_linesize);
2125
                        }
2126
                    }
2127
                }//fi gray
2128
            }
2129
            else if (CONFIG_WMV2_DECODER || CONFIG_WMV2_ENCODER) {
2130
190149
                ff_wmv2_add_mb(s, block, dest_y, dest_cb, dest_cr);
2131
            }
2132
        } else {
2133
            /* Only MPEG-4 Simple Studio Profile is supported in > 8-bit mode.
2134
               TODO: Integrate 10-bit properly into mpegvideo.c so that ER works properly */
2135
1052318
            if (s->avctx->bits_per_raw_sample > 8){
2136
                const int act_block_size = block_size * 2;
2137
2138
                if(s->dpcm_direction == 0) {
2139
                    s->idsp.idct_put(dest_y,                           dct_linesize, (int16_t*)(*s->block32)[0]);
2140
                    s->idsp.idct_put(dest_y              + act_block_size, dct_linesize, (int16_t*)(*s->block32)[1]);
2141
                    s->idsp.idct_put(dest_y + dct_offset,              dct_linesize, (int16_t*)(*s->block32)[2]);
2142
                    s->idsp.idct_put(dest_y + dct_offset + act_block_size, dct_linesize, (int16_t*)(*s->block32)[3]);
2143
2144
                    dct_linesize = uvlinesize << s->interlaced_dct;
2145
                    dct_offset   = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
2146
2147
                    s->idsp.idct_put(dest_cb,              dct_linesize, (int16_t*)(*s->block32)[4]);
2148
                    s->idsp.idct_put(dest_cr,              dct_linesize, (int16_t*)(*s->block32)[5]);
2149
                    s->idsp.idct_put(dest_cb + dct_offset, dct_linesize, (int16_t*)(*s->block32)[6]);
2150
                    s->idsp.idct_put(dest_cr + dct_offset, dct_linesize, (int16_t*)(*s->block32)[7]);
2151
                    if(!s->chroma_x_shift){//Chroma444
2152
                        s->idsp.idct_put(dest_cb + act_block_size,              dct_linesize, (int16_t*)(*s->block32)[8]);
2153
                        s->idsp.idct_put(dest_cr + act_block_size,              dct_linesize, (int16_t*)(*s->block32)[9]);
2154
                        s->idsp.idct_put(dest_cb + act_block_size + dct_offset, dct_linesize, (int16_t*)(*s->block32)[10]);
2155
                        s->idsp.idct_put(dest_cr + act_block_size + dct_offset, dct_linesize, (int16_t*)(*s->block32)[11]);
2156
                    }
2157
                } else if(s->dpcm_direction == 1) {
2158
                    int i, w, h;
2159
                    uint16_t *dest_pcm[3] = {(uint16_t*)dest_y, (uint16_t*)dest_cb, (uint16_t*)dest_cr};
2160
                    int linesize[3] = {dct_linesize, uvlinesize, uvlinesize};
2161
                    for(i = 0; i < 3; i++) {
2162
                        int idx = 0;
2163
                        int vsub = i ? s->chroma_y_shift : 0;
2164
                        int hsub = i ? s->chroma_x_shift : 0;
2165
                        for(h = 0; h < (16 >> vsub); h++){
2166
                            for(w = 0; w < (16 >> hsub); w++)
2167
                                dest_pcm[i][w] = (*s->dpcm_macroblock)[i][idx++];
2168
                            dest_pcm[i] += linesize[i] / 2;
2169
                        }
2170
                    }
2171
                } else if(s->dpcm_direction == -1) {
2172
                    int i, w, h;
2173
                    uint16_t *dest_pcm[3] = {(uint16_t*)dest_y, (uint16_t*)dest_cb, (uint16_t*)dest_cr};
2174
                    int linesize[3] = {dct_linesize, uvlinesize, uvlinesize};
2175
                    for(i = 0; i < 3; i++) {
2176
                        int idx = 0;
2177
                        int vsub = i ? s->chroma_y_shift : 0;
2178
                        int hsub = i ? s->chroma_x_shift : 0;
2179
                        dest_pcm[i] += (linesize[i] / 2) * ((16 >> vsub) - 1);
2180
                        for(h = (16 >> vsub)-1; h >= 1; h--){
2181
                            for(w = (16 >> hsub)-1; w >= 1; w--)
2182
                                dest_pcm[i][w] = (*s->dpcm_macroblock)[i][idx++];
2183
                            dest_pcm[i] -= linesize[i] / 2;
2184
                        }
2185
                    }
2186
                }
2187
            }
2188
            /* dct only in intra block */
2189

1052318
            else if(s->encoding || !(s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO)){
2190
778414
                put_dct(s, block[0], 0, dest_y                          , dct_linesize, s->qscale);
2191
778414
                put_dct(s, block[1], 1, dest_y              + block_size, dct_linesize, s->qscale);
2192
778414
                put_dct(s, block[2], 2, dest_y + dct_offset             , dct_linesize, s->qscale);
2193
778414
                put_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
2194
2195
778414
                if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2196
778414
                    if(s->chroma_y_shift){
2197
739404
                        put_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
2198
739404
                        put_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
2199
                    }else{
2200
39010
                        dct_offset >>=1;
2201
39010
                        dct_linesize >>=1;
2202
39010
                        put_dct(s, block[4], 4, dest_cb,              dct_linesize, s->chroma_qscale);
2203
39010
                        put_dct(s, block[5], 5, dest_cr,              dct_linesize, s->chroma_qscale);
2204
39010
                        put_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
2205
39010
                        put_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
2206
                    }
2207
                }
2208
            }else{
2209
273904
                s->idsp.idct_put(dest_y,                           dct_linesize, block[0]);
2210
273904
                s->idsp.idct_put(dest_y              + block_size, dct_linesize, block[1]);
2211
273904
                s->idsp.idct_put(dest_y + dct_offset,              dct_linesize, block[2]);
2212
273904
                s->idsp.idct_put(dest_y + dct_offset + block_size, dct_linesize, block[3]);
2213
2214
                if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2215
273904
                    if(s->chroma_y_shift){
2216
220094
                        s->idsp.idct_put(dest_cb, uvlinesize, block[4]);
2217
220094
                        s->idsp.idct_put(dest_cr, uvlinesize, block[5]);
2218
                    }else{
2219
2220
53810
                        dct_linesize = uvlinesize << s->interlaced_dct;
2221
53810
                        dct_offset   = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
2222
2223
53810
                        s->idsp.idct_put(dest_cb,              dct_linesize, block[4]);
2224
53810
                        s->idsp.idct_put(dest_cr,              dct_linesize, block[5]);
2225
53810
                        s->idsp.idct_put(dest_cb + dct_offset, dct_linesize, block[6]);
2226
53810
                        s->idsp.idct_put(dest_cr + dct_offset, dct_linesize, block[7]);
2227
53810
                        if(!s->chroma_x_shift){//Chroma444
2228
                            s->idsp.idct_put(dest_cb + block_size,              dct_linesize, block[8]);
2229
                            s->idsp.idct_put(dest_cr + block_size,              dct_linesize, block[9]);
2230
                            s->idsp.idct_put(dest_cb + block_size + dct_offset, dct_linesize, block[10]);
2231
                            s->idsp.idct_put(dest_cr + block_size + dct_offset, dct_linesize, block[11]);
2232
                        }
2233
                    }
2234
                }//gray
2235
            }
2236
        }
2237
53810
skip_idct:
2238
8023501
        if(!readable){
2239
974491
            s->hdsp.put_pixels_tab[0][0](s->dest[0], dest_y ,   linesize,16);
2240
            if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2241
974491
                s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[1], dest_cb, uvlinesize,16 >> s->chroma_y_shift);
2242
974491
                s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[2], dest_cr, uvlinesize,16 >> s->chroma_y_shift);
2243
            }
2244
        }
2245
    }
2246
}
2247
2248
8930695
void ff_mpv_reconstruct_mb(MpegEncContext *s, int16_t block[12][64])
2249
{
2250
#if !CONFIG_SMALL
2251
8930695
    if(s->out_format == FMT_MPEG1) {
2252
3717291
        if(s->avctx->lowres) mpv_reconstruct_mb_internal(s, block, 1, 1);
2253
3717291
        else                 mpv_reconstruct_mb_internal(s, block, 0, 1);
2254
    } else
2255
#endif
2256
5213404
    if(s->avctx->lowres) mpv_reconstruct_mb_internal(s, block, 1, 0);
2257
5169904
    else                  mpv_reconstruct_mb_internal(s, block, 0, 0);
2258
8930695
}
2259
2260
165284
void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h)
2261
{
2262
165284
    ff_draw_horiz_band(s->avctx, s->current_picture_ptr->f,
2263
165284
                       s->last_picture_ptr ? s->last_picture_ptr->f : NULL, y, h, s->picture_structure,
2264
                       s->first_field, s->low_delay);
2265
165284
}
2266
2267
837471
void ff_init_block_index(MpegEncContext *s){ //FIXME maybe rename
2268
837471
    const int linesize   = s->current_picture.f->linesize[0]; //not s->linesize as this would be wrong for field pics
2269
837471
    const int uvlinesize = s->current_picture.f->linesize[1];
2270
837471
    const int width_of_mb = (4 + (s->avctx->bits_per_raw_sample > 8)) - s->avctx->lowres;
2271
837471
    const int height_of_mb = 4 - s->avctx->lowres;
2272
2273
837471
    s->block_index[0]= s->b8_stride*(s->mb_y*2    ) - 2 + s->mb_x*2;
2274
837471
    s->block_index[1]= s->b8_stride*(s->mb_y*2    ) - 1 + s->mb_x*2;
2275
837471
    s->block_index[2]= s->b8_stride*(s->mb_y*2 + 1) - 2 + s->mb_x*2;
2276
837471
    s->block_index[3]= s->b8_stride*(s->mb_y*2 + 1) - 1 + s->mb_x*2;
2277
837471
    s->block_index[4]= s->mb_stride*(s->mb_y + 1)                + s->b8_stride*s->mb_height*2 + s->mb_x - 1;
2278
837471
    s->block_index[5]= s->mb_stride*(s->mb_y + s->mb_height + 2) + s->b8_stride*s->mb_height*2 + s->mb_x - 1;
2279
    //block_index is not used by mpeg2, so it is not affected by chroma_format
2280
2281
837471
    s->dest[0] = s->current_picture.f->data[0] + (int)((s->mb_x - 1U) <<  width_of_mb);
2282
837471
    s->dest[1] = s->current_picture.f->data[1] + (int)((s->mb_x - 1U) << (width_of_mb - s->chroma_x_shift));
2283
837471
    s->dest[2] = s->current_picture.f->data[2] + (int)((s->mb_x - 1U) << (width_of_mb - s->chroma_x_shift));
2284
2285

837471
    if(!(s->pict_type==AV_PICTURE_TYPE_B && s->avctx->draw_horiz_band && s->picture_structure==PICT_FRAME))
2286
    {
2287
837471
        if(s->picture_structure==PICT_FRAME){
2288
806691
        s->dest[0] += s->mb_y *   linesize << height_of_mb;
2289
806691
        s->dest[1] += s->mb_y * uvlinesize << (height_of_mb - s->chroma_y_shift);
2290
806691
        s->dest[2] += s->mb_y * uvlinesize << (height_of_mb - s->chroma_y_shift);
2291
        }else{
2292
30780
            s->dest[0] += (s->mb_y>>1) *   linesize << height_of_mb;
2293
30780
            s->dest[1] += (s->mb_y>>1) * uvlinesize << (height_of_mb - s->chroma_y_shift);
2294
30780
            s->dest[2] += (s->mb_y>>1) * uvlinesize << (height_of_mb - s->chroma_y_shift);
2295
            av_assert1((s->mb_y&1) == (s->picture_structure == PICT_BOTTOM_FIELD));
2296
        }
2297
    }
2298
837471
}
2299
2300
79
void ff_mpeg_flush(AVCodecContext *avctx){
2301
    int i;
2302
79
    MpegEncContext *s = avctx->priv_data;
2303
2304

79
    if (!s || !s->picture)
2305
        return;
2306
2307
2923
    for (i = 0; i < MAX_PICTURE_COUNT; i++)
2308
2844
        ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
2309
79
    s->current_picture_ptr = s->last_picture_ptr = s->next_picture_ptr = NULL;
2310
2311
79
    ff_mpeg_unref_picture(s->avctx, &s->current_picture);
2312
79
    ff_mpeg_unref_picture(s->avctx, &s->last_picture);
2313
79
    ff_mpeg_unref_picture(s->avctx, &s->next_picture);
2314
2315
79
    s->mb_x= s->mb_y= 0;
2316
79
    s->closed_gop= 0;
2317
2318
79
    s->parse_context.state= -1;
2319
79
    s->parse_context.frame_start_found= 0;
2320
79
    s->parse_context.overread= 0;
2321
79
    s->parse_context.overread_index= 0;
2322
79
    s->parse_context.index= 0;
2323
79
    s->parse_context.last_index= 0;
2324
79
    s->bitstream_buffer_size=0;
2325
79
    s->pp_time=0;
2326
}
2327
2328
/**
2329
 * set qscale and update qscale dependent variables.
2330
 */
2331
1447098
void ff_set_qscale(MpegEncContext * s, int qscale)
2332
{
2333
1447098
    if (qscale < 1)
2334
        qscale = 1;
2335
1447098
    else if (qscale > 31)
2336
        qscale = 31;
2337
2338
1447098
    s->qscale = qscale;
2339
1447098
    s->chroma_qscale= s->chroma_qscale_table[qscale];
2340
2341
1447098
    s->y_dc_scale= s->y_dc_scale_table[ qscale ];
2342
1447098
    s->c_dc_scale= s->c_dc_scale_table[ s->chroma_qscale ];
2343
1447098
}
2344
2345
155516
void ff_mpv_report_decode_progress(MpegEncContext *s)
2346
{
2347

155516
    if (s->pict_type != AV_PICTURE_TYPE_B && !s->partitioned_frame && !s->er.error_occurred)
2348
114894
        ff_thread_report_progress(&s->current_picture_ptr->tf, s->mb_y, 0);
2349
155516
}